Category: Resources

Annelids and Mollusks Study Guide

%CODE1%

Javascript not enabled

 

 
Name: 
 

Annelids and Mollusks Quiz

 

  

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 
 1.
Which of the following is not a characteristic of at least some mollusks?
a.
 a pseudocoelomate body plan
b.
 bilateral symmetry
c.
 a mantle
d.
 an open circulatory system
 
 2.
Which of the following has a true coelom?
a.
 flatworm
c.
 rotifer
b.
 roundworm
d.
 mollusk
 
 3.
The evolution of a coelom was significant because
a.
 more food could be stored within it.
b.
 more wastes could be stored before excretion.
c.
 it enabled development of more complex organ systems.
d.
 it eliminated the need for a circulatory system.
 
 4.
mollusks : a mantle ::
a.
 pseudocoelomate animals : true body cavities
b.
 roundworms : single-opening digestive tract
c.
 roundworms : coelom
d.
 mollusks : a coelom
 
 5.
The cilia of a trochophore
a.
 allow attachment to the ocean bottom.
b.
 create currents for drawing in food.
c.
 cover the entire larval body.
d.
 are necessary for reproduction.
 
 6.
Trochophores
a.
 occur in some mollusks’ life cycles.
b.
 possess a belt of cilia around their bodies.
c.
 occur in some annelids’ life cycles.
d.
 All of the above
 
 7.
A characteristic structure found in many mollusks is the radula, which is involved in
a.
 jet propulsion.
c.
 eating.
b.
 opening and closing of the shell.
d.
 reproduction.
 
 8.
Which of the following is a correct pairing?
a.
 phylum Platyhelminthes—hydra
b.
 phylum Nematoda—planaria
c.
 phylum Mollusca—octopus
d.
 phylum Annelida—roundworm
 
 9.
All of the animal phyla that evolved after the mollusks
a.
 are vertebrates.
c.
 have a coelom.
b.
 are prokaryotes.
d.
 lack mesoderm.
 
 10.
All of the following are classes of the phylum Mollusca except
a.
 bivalves.
c.
 gastropods.
b.
 cephalopods.
d.
 pseudopods.
 
 11.
Which of the following mollusks have a closed circulatory system?
a.
 snails
c.
 slugs
b.
 cephalopods
d.
 gastropods
 
 12.

mc012-1.jpg

Refer to the illustration above. Which two organisms have mantles?

a.
 1 and 3
c.
 1 and 4
b.
 2 and 3
d.
 2 and 4
 
 13.
Jet propulsion is the usual means of locomotion in water for
a.
 octopuses.
c.
 squids.
b.
 gastropods.
d.
 bivalves.
 
   
 
nar001-1.jpg
 
 14.
Refer to the illustration above. This organism is a
a.
 bivalve.
c.
 trochophore.
b.
 cephalopod.
d.
 gastropod.
 
 15.
Refer to the illustration above. Movement of this organism is dependent upon structure
a.
 1.
c.
 3.
b.
 2.
d.
 None of the above
 
 16.
Shells of mollusks
a.
 may consist of one or more pieces.
b.
 provide protection.
c.
 allow for the attachment of muscles.
d.
 All of the above
 
 17.
Adductor muscles are responsible for
a.
 moving the valves of bivalves.
b.
 extending the feet of mollusks.
c.
 pumping the hearts of mollusks.
d.
 fanning the gills of aquatic mollusks.
 
 18.
In an open circulatory system,
a.
 water is drawn into the mantle cavity to provide oxygen to body tissues.
b.
 lungs branch into small tubules to provide oxygen to tissues.
c.
 wastes are eliminated directly to the environment from the tissues.
d.
 blood is released directly into spaces in the body tissues.
 
 19.
Twisting of the visceral mass of gastropods is called
a.
 extension.
c.
 torsion.
b.
 inversion.
d.
 conversion.
 
 20.
Among the various species of gastropods, respiration may take place
a.
 with gills.
b.
 through the skin.
c.
 within the mantle cavity.
d.
 All of the above
 
 21.
All of the cephalopods
a.
 have eight tentacles.
b.
 are predators.
c.
 possess protective shells.
d.
 are filter feeders.
 
 22.
Jet propulsion in a squid is the result of
a.
 rapid closing of the organism’s shell.
b.
 strong contractions of the tentacles.
c.
 high-pressure discharge of fluid from the organism’s mouth.
d.
 the pumping of water through the siphon.
 
 23.
The only cephalopod that has retained its external shell is the
a.
 cuttlefish.
c.
 octopus.
b.
 chambered nautilus.
d.
 squid.
 
 24.
Segmented worms are known as
a.
 nematodes.
c.
 planarians.
b.
 annelids.
d.
 arthropods.
 
 25.
Each segment of an annelid
a.
 is capable of reproduction.
b.
 has a well-developed brain that allows the annelid to learn simple tasks.
c.
 has a pseudocoelom.
d.
 may contain some organ systems that duplicate systems in other segments.
 
 26.
An example of segmentation in humans is the
a.
 digestive system.
c.
 vertebral column.
b.
 skin.
d.
 brain.
 
 27.
The most significant evolutionary advancement of annelids over mollusks is believed to be
a.
 the ability to burrow.
c.
 segmentation.
b.
 the existence of a true coelom.
d.
 cephalization.
 
 28.

mc028-1.jpg

Refer to the illustration above. Which two organisms have segmented body plans?

a.
 3 and 4
c.
 1 and 4
b.
 2 and 4
d.
 2 and 3
 
 29.
true coelom : mollusks and annelids ::
a.
 tentacle : annelids
c.
 valve : annelids
b.
 siphon : annelids
d.
 segmentation : annelids
 
 30.
Coordinated movements of an earthworm’s body segments are possible because of the
a.
 development of an advanced brain.
b.
 ventral nerve cord and ganglia that carry impulses to the muscles.
c.
 presence of a true coelom in the earthworm’s body.
d.
 existence of a complete digestive system.
 
 31.
earthworm movement : circular muscles and setae ::
a.
 earthworm digestion : circular muscles and setae
b.
 earthworm digestion : seminal receptacles
c.
 earthworm reproduction : pharynx
d.
 earthworm respiration : skin
 
 32.
Small tubules that collect wastes from the coelom of annelids and discharge the wastes from the body are called
a.
 nephridia.
c.
 bivalves.
b.
 radulae.
d.
 spicules.
 
 33.
The digestive tube of the earthworm is divided into three regions. Which of the following is not among these regions?
a.
 crop
c.
 radula
b.
 intestine
d.
 gizzard
 
 34.
Which of the following is (are) not part of an earthworm’s body?
a.
 a heart
c.
 nephridia
b.
 gills
d.
 a typhlosole
 
 35.
The clitellum of an earthworm
a.
 contains the heart.
b.
 is associated with reproduction.
c.
 acts as a primitive respiratory system.
d.
 is necessary for movement.
 
 36.
Earthworms are considered to be beneficial to the environment because
a.
 they help release nutrients into the soil.
b.
 they aerate the soil as they move through it.
c.
 they break up the soil in which they live.
d.
 All of the above
 
 37.
squid motion : siphon ::
a.
 annelid motion : siphon
b.
 annelid breathing : nephridia
c.
 earthworm circulation : closed circulatory system
d.
 annelid motion : tentacles
 
 38.
The body of the water leech
a.
 has suckers on the front and back.
c.
 is segmented.
b.
 has no parapodia.
d.
 All of the above
 
 39.
Leeches
a.
 use suckers to aid in movement.
c.
 are segmented.
b.
 may be parasitic.
d.
 All of the above
 
 40.
leeches : blood ::
a.
 earthworms : small animals
b.
 earthworms : blood
c.
 marine polychaetes : small animals
d.
 marine polychaetes : blood
 
  

Completion
Complete each statement.
 
   41.
The ____________________ larva is a characteristic of some mollusks and annelids.
 
 

 
   42.
Constant beating of ____________________ in the mantle cavity of a clam causes a continuous stream of water to pass over the gills.
 
 

 
   43.
A tonguelike scraping organ used by some mollusks in feeding is called the ____________________.
 
 

 
   44.
An organ known as the ____________________ is an abrasive, tonguelike structure found in some mollusks.
 
 

 
   45.
A snail can pull its head into its mantle cavity because the cavity has moved to the anterior of the animal during a twisting process called ____________________ that occurs during development.
 
 

 
   46.
Water is drawn into the body of a clam through tubes called ____________________.
 
 

 
   47.
A bivalve’s shells close when the pair of ____________________ contract.
 
 

 
   48.
Structures in earthworms that function as simple kidneys are called ____________________.
 
 

 
   49.
The only living cephalopod that has retained its external shell is the _________________________.
 
 

 
   50.
Snails and slugs belong to the class of mollusks called ____________________.
 
 

 
   51.
Earthworms belong to the phylum ____________________.
 
 

 
   52.

co052-1.jpg

Refer to the illustration above. Structure X is the ventral ____________________ cord.

 
 

 
   53.
In anterior segments of annelids, several ganglia are fused to form the ____________________, which is the brain of these organisms.
 
 

 
   54.
An earthworm’s ____________________ produces a tube made of mucus and chitin that contains the eggs and sperm and allows development of an earthworm’s offspring.
 
 

 
   55.
Bristles that exist along the sides of an annelid are called ____________________.
 
 

 
   56.
Some leeches are ____________________; they feed on the blood of other animals.
 
 

 
   57.
The ____________________ are annelids that have many setae and parapodia, generally live in marine environments, and have antennae.
 
 

 

 

 
Check Your Work     Start Over

Mollusks

%CODE1%

Name: 

Mollusks

 

 

True/False
Indicate whether the sentence or statement is true or false.
1.
Mollusks must eat constantly because the functioning of their nephridia causes the disposal of useful molecules as well as of waste products.
2.
Unlike arthropods, mollusks are unsegmented; instead, they are divided into three regions.
3.
Mollusks have four distinct body parts: a foot, a head, a visceral mass, and a tail.
4.
In terrestrial snails, the mantle cavity functions as a simple lung.
5.
Most bivalves have separate sexes, but some are hermaphroditic.
6.
Due to the presence of a shell, all gastropods are capable of living on land for at least a portion of their lives.
7.
Since cephalopods have tentacles, they have no need for a radula.
 

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
8.
All of the following are characteristics of mollusks except that they have
a.
a pseudocoelomate body plan.
c.
a complete digestive tract.
b.
bilateral symmetry.
d.
an open circulatory system.
9.
The cilia of a trochophore larva
a.
allow attachment to the ocean bottom.
b.
create currents for drawing in food.
c.
cover the entire larval body.
d.
are necessary for reproduction.
10.
Trochophore larvae
a.
are found in molluscan life cycles.
b.
possess a belt of cilia around their bodies.
c.
occur in annelid life cycles.
d.
All of the above
11.
A characteristic structure found in many mollusks is the radula, which is involved in
a.
jet propulsion.
c.
eating.
b.
opening and closing of the shells.
d.
reproduction.
12.
All of the following are classes of the phylum Mollusca except
a.
bivalves.
c.
gastropods.
b.
cephalopods.
d.
pseudopods.
13.
The only mollusks that have a closed circulatory system are
a.
bivalves.
c.
chitons.
b.
cephalopods.
d.
gastropods.
      mollusks_files/i0160000.jpg
14.
Refer to the illustration above. Which two organisms in the diagrams possess mantles?
a.
Organisms “A” and “C”
c.
Organisms “A” and “D”
b.
Organisms “B” and “C”
d.
Organisms “B” and “D”
15.
“Jet propulsion” is the usual means of locomotion in water for
a.
arthropods.
c.
cephalopods.
b.
echinoderms.
d.
annelids.
      mollusks_files/i0190000.jpg
16.
Refer to the illustration above. The organism shown in this diagram is a
a.
bivalve.
c.
chiton.
b.
cephalopod.
d.
gastropod.
17.
Refer to the illustration above. This organism possesses a(n)
a.
simple lung.
c.
internal beak.
b.
closed circulatory system.
d.
open circulatory system.
18.
Refer to the illustration above. Movement of this organism is dependent upon the structure labeled
a.
“1.”
c.
“3.”
b.
“2.”
d.
None of the above
19.
Shells of mollusks
a.
may consist of one or more pieces.
c.
allow for the attachment of muscles.
b.
provide protection.
d.
All of the above
20.
Adductor muscles are responsible for
a.
moving the valves of bivalves.
c.
pumping the hearts of mollusks.
b.
extending the feet of mollusks.
d.
fanning the gills of aquatic mollusks.

 
Check Your Work     Reset

 

 

Introduction to Plants Study Guide

%CODE1%

Javascript not enabled

Name: 

Introduction to Plants Quiz

 

 

Modified True/False
Indicate whether the statement is true or false.  If false, change the identified word or phrase to make the statement true.
 1.
Plants are multicellular prokaryotes. _________________________
 2.
The plant life cycle includes a diploid gamete and a haploid spore. _________________________
 3.
Mosses are most often found in dry environments. _________________________
 4.
Mosses and liverworts lack a vascular system for transporting water and nutrients. _________________________
 5.
Water must be present for fertilization to take place in mosses. _________________________
 6.
In mosses and liverworts, eggs are formed through mitosis in the antheridia. _________________________
 7.
Gametophytes of conifers are physically much larger than their sporophytes. _________________________
 8.
One important difference between mosses and ferns is that mosses have a vascular system. _________________________
 9.
Shoots, stems, and roots characterize the bodies of vascular plant sporophytes. _________________________
 10.
Ferns are characterized by fronds and fiddleheads. _________________________
 11.
Haploid fern spores are produced by gametophytes. _________________________
 12.
In ferns, a large sporophyte with leaves called fronds alternates with a heart-shaped gametophyte. _________________________
 13.
Ferns need water to reproduce because their sperm must swim to eggs. _________________________
 14.
Both mosses and ferns require a thin film of water for gametes to meet. _________________________
 15.
In both mosses and ferns, eggs are formed through mitosis in the antheridia. _________________________
 16.
Gymnosperm seeds are enclosed in a fruit. _________________________
 17.
Gametophytes of seed plants are large and easily viewed with the unaided eye. _________________________
 18.
Sexual reproduction in seed plants involves the transfer of pollen from the male reproductive structures of a plant to the female reproductive structures. _________________________
 19.
Seed plants cannot reproduce without a film of water for transferring of gametes. _________________________
 20.
A seed is a structure that contains a plant embryo. _________________________
 21.
A plant embryo is a new sporophyte. _________________________
 22.
In flowering plants, the embryos of monocots have two cotyledons. _________________________
 23.
Pollen is produced in the tip of the stamen, a structure called the sepal. _________________________
 24.
The lower portion of the pistil produces pollen. _________________________
 25.
Gametophytes develop within flowers. _________________________
 26.
Pollen tubes grow through the style toward the ovule. _________________________
 27.
Many seeds have appendages that aid in dispersal. _________________________
 28.
Asexual reproduction produces new plants that are genetically different from the parent plant. _________________________
 29.
Vegetative reproduction does require a plant to have flowers. _________________________
 30.
In vegetative reproduction, new plants may be generated from stems or roots. _________________________
 

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 31.
The ancestors of today’s land plants were probably
a.
 brown algae.
c.
 green algae.
b.
 red algae.
d.
 lichens.
 32.
Among the challenges that faced early land plants were
a.
 eliminating excess water.
b.
 obtaining sunlight for photosynthesis.
c.
 absorbing minerals from the rocky surface.
d.
 avoiding being eaten by grazing mammals.
 33.
The waxy protective covering of a land plant is called a
a.
 cuticle.
c.
 rhizome.
b.
 capsule.
d.
 stoma.
 34.
Some land plants developed an internal system of interconnected tubes and vessels called
a.
 cuticles.
c.
 a circulatory system.
b.
 nonvascular canals.
d.
 vascular tissue.
 35.
sporophytes : spores ::
a.
 sporophytes : gametophytes
c.
 gametes : gametophytes
b.
 gametophytes : gametes
d.
 sporophytes : gametes
 36.
The diploid form in a plant’s life cycle is called the
a.
 sporophyte.
c.
 parental generation.
b.
 gametophyte.
d.
 alternate generation.
 37.
The haploid form in a plant’s life cycle is called the
a.
 sporophyte.
c.
 parental generation.
b.
 gametophyte.
d.
 alternate generation.
 38.
A haploid stage following a diploid stage in a plant’s life cycle is called
a.
 generational recycling.
c.
 alternating forms.
b.
 periodic gametogenesis.
d.
 alternation of generations.
 39.
In plants, haploid gametes are produced as a result of
a.
 fertilization.
c.
 encapsulation.
b.
 meiosis.
d.
 mitosis.
 40.
sporophytes : meiosis ::
a.
 sporophytes : spores
c.
 gametophytes : gametes
b.
 gametophytes : mitosis
d.
 sporophytes : gametes
 41.
Mosses, hornworts, and liverworts all possess
a.
 fibrous roots.
c.
 tap roots.
b.
 spore capsules.
d.
 green leaves.
 42.
In nonvascular plants, structures in which spores are produced are known as
a.
 meristems.
c.
 cones.
b.
 pollen grains.
d.
 sporangia.
 43.
Which of the following statements about moss spores is not true?
a.
 They are produced by the sporophyte.
b.
 They are dispersed and then germinate.
c.
 They are produced in a capsule-like top.
d.
 They are diploid.
 44.
The sporophyte generation in mosses produces spores by
a.
 meiosis.
c.
 sexual reproduction.
b.
 mitosis.
d.
 asexual reproduction.
 45.
The most noticeable form of a moss life cycle is the
a.
 sporophyte.
c.
 rhizoid.
b.
 gametophyte.
d.
 zygote.
 46.
In which of the following structures do seedless plants produce eggs?
a.
 antheridia
c.
 archegonia
b.
 capsules
d.
 cones
 47.
antheridia : sperm ::
a.
 rhizoids : gametes
c.
 archegonia : eggs
b.
 seeds : gametophytes
d.
 sperm : megaspores
 48.
Both mosses and ferns produce
a.
 seeds.
c.
 flowers.
b.
 fruit.
d.
 spores.
 49.
Fern sporophytes consist of rhizomes,
a.
 large leaves, and flowers.
c.
 pollen grains, and ovules.
b.
 cones, and stems.
d.
 roots, and fronds.
 50.
Unlike mosses, ferns possess
a.
 spore capsules.
c.
 antheridia.
b.
 archegonia.
d.
 vascular tissue.
 51.
Fiddleheads are produced by
a.
 whisk ferns.
c.
 ferns.
b.
 club mosses.
d.
 horsetails.
 52.
Both mosses and ferns produce gametes through
a.
 mitosis.
c.
 osmosis.
b.
 meiosis.
d.
 diffusion.
 53.
vascular plants : sporophytes ::
a.
 sporophytic plants : gametophytes
c.
 spores : gametes
b.
 gametes : sporophytes
d.
 nonvascular plants : gametophytes
The diagram below shows the plant life cycle.

nar001-1.jpg
 54.
Refer to the diagram above. At which point in the life cycle does fertilization take place?
a.
 1
c.
 3
b.
 2
d.
 4
 55.
Refer to the diagram above. The structures produced at 3 are called
a.
 sporangia.
c.
 spores.
b.
 archegonia.
d.
 antheridia.
 56.
Which of the following were the first land plants to evolve seeds?
a.
 angiosperms
c.
 mosses
b.
 gymnosperms
d.
 horsetails
 57.
liverworts, hornworts, and mosses : nonvascular plants ::
a.
 gymnosperms and angiosperms : bryophytes
b.
 ferns : mosses
c.
 gymnosperms and angiosperms : seed plants
d.
 bryophytes and liverworts : vascular plants
 58.
gymnosperms : naked seeds ::
a.
 pollen : mosses
c.
 liverwort : vascular tissue
b.
 liverwort : pollen
d.
 angiosperms : enclosed seeds
 59.
In seed plants, female gametophytes produce
a.
 sperm.
c.
 cells.
b.
 eggs.
d.
 spores.
 60.
A male gametophyte of a seed plant develops into a
a.
 pollen grain.
c.
 pollen tube.
b.
 spore capsule.
d.
 seed coat.
 61.
The partially developed plant found in seeds is known as a(n)
a.
 gametophyte.
c.
 embryo.
b.
 spore capsule.
d.
 sporophyte.
 62.
A typical seed contains all of the following except a(n)
a.
 seed coat.
c.
 embryo.
b.
 nutritious tissue.
d.
 spore case.
 63.
The tallest trees in the world are a species of
a.
 conifers.
c.
 liverworts.
b.
 dicots.
d.
 angiosperms.
 64.
The process of transferring pollen from a male cone to a female cone in gymnosperms is called
a.
 fertilization.
c.
 pollination.
b.
 seed formation.
d.
 asexual reproduction.
 65.
In conifers, the diploid condition is resumed following
a.
 pollination.
c.
 respiration.
b.
 fertilization.
d.
 sporulation.
 66.
The seeds of monocots have
a.
 one embryo and two cotyledons.
c.
 one embryo and one cotyledon.
b.
 two embryos and two cotyledons.
d.
 two embryos and one cotyledon.
 67.
Flowering plants are classified as monocots or dicots according to the number of their
a.
 leaves.
c.
 meristems.
b.
 flowers.
d.
 cotyledons.
 68.
Monocots and dicots are subdivisions of
a.
 angiosperms.
c.
 ferns.
b.
 gymnosperms.
d.
 mosses.
nar002-1.jpg
 69.
Refer to the diagram above. The structure labeled f
a.
 supports the anther.
c.
 supports the pistil.
b.
 produces pollen.
d.
 develops into a fruit.
 70.
Refer to the diagram above. The structure labeled c
a.
 produces pollen.
b.
 contains sperm cells.
c.
 is the area where pollen lands and sticks.
d.
 contains meristematic tissue.
 71.
Removing a flower’s stigma would initially affect
a.
 fertilization.
c.
 pollination.
b.
 seed production.
d.
 seed dispersal.
 72.
Pollen is produced in a structure called the
a.
 anther.
c.
 ovary.
b.
 stigma.
d.
 pistil.
 73.
In angiosperms, immediately following pollination,
a.
 the seed develops.
c.
 fertilization occurs.
b.
 an egg cell is formed.
d.
 the pollen tube begins to form.
 74.
During fertilization in flowering plants, one sperm fuses with an egg to form an embryo, and another fuses with two nuclei to form nutritive tissue. This event is called
a.
 self-pollination.
c.
 maximization.
b.
 adaptation.
d.
 double fertilization.
 75.
fruit : mature ovary
a.
 gametophyte : sporophyte
c.
 cotyledon : food reserve
b.
 gymnosperm : angiosperm
d.
 vascular plant : nonvascular plant
 76.
If a plant’s flowers are very colorful and produce nectar, the plant is probably pollinated by
a.
 water.
c.
 insects.
b.
 wind.
d.
 self-pollination.
 77.
One way that flowers produced by angiosperms help ensure the transfer of gametes is by
a.
 traveling in the air currents.
b.
 bursting open and projecting gametes onto the landscape.
c.
 attracting animals that carry pollen from one flower to another.
d.
 producing tasty fruits that animals depend on for food.
 78.
What function do all fruits produced by angiosperms perform?
a.
 produce nutrients for the plant
b.
 nourish the embryos
c.
 disperse the seeds
d.
 ensure pollination
 79.
Which structure allows plants to reproduce asexually?
a.
 tuber
c.
 archegonium
b.
 flower
d.
 antheridium
 80.
The production of offspring genetically identical to the parent plant is the result of
a.
 sexual reproduction.
c.
 alternation of generations.
b.
 asexual reproduction.
d.
 double fertilization.
 

Completion
Complete each statement.
 81.
The surface of a vascular plant is covered by a waxy, waterproof layer called a(n) ____________________.
 82.
One of the first environmental challenges that early land plants had to overcome was developing a way to conserve ____________________.
 83.
The sporophyte generation produces spores by the process of ____________________.
 84.
The haploid form of a plant is known as the ____________________ generation.
 85.
Nonvascular plants transport materials within their bodies through the process of ____________________.
 86.
A green, hornlike sporophyte growing upward from the gametophyte is typical of plants known as ____________________.
 87.
In mosses and liverworts, the ____________________ generation is the dominant generation.
 88.
The very tiny liverwort ____________________ grow from the archegonia under the caps of female stalks.
 89.
The gametophytes of ____________________ plants are larger and more noticeable than the sporophytes.
 90.
The seedless plants produce sperm within the ____________________.
 91.
True roots, stems, and leaves are associated with ____________________ plants.
 92.
A fern is an example of a(n) ____________________ vascular plant.
 93.
Both mosses and ferns produce eggs within structures called ____________________.
 94.
Like the nonvascular plants, the seedless vascular plants can reproduce sexually only when a film of ____________________ covers the gametophyte.
 95.
Unlike mosses, ferns have sporophytes that are much ____________________ than their gametophytes.
 96.
Seed plants whose seeds do not develop within a sealed container (fruit) are called ____________________.
 97.
Fruit is a characteristic associated only with the flowering plants, or ____________________.
 98.
A male gametophyte of a seed plant develops into a(n) ____________________.
 99.
The ____________________ is the protective cover that surrounds a seed.
 100.
The seed coat prevents the embryo from drying out, from mechanical injury, and from ____________________.
 101.
A(n) ____________________ is a specialized structure that develops from an ovule and serves to protect a plant embryo from harsh conditions.
 102.
The four major groups of gymnosperms are gnetophytes, cycads, ginkgoes, and ____________________.
 103.
A mature pine tree produces both male and female ____________________.
 104.
Gymnosperms are pollinated by ____________________, which makes sexual reproduction possible even during dry conditions.
 105.
The life cycle of a conifer is characterized by a large ____________________ generation.
 106.
In conifers, seeds form on the ____________________ of cones.
 107.
A plant that has flower parts that occur in fours or fives or multiples of four or five is a member of a subgroup called a(n) ____________________.
nar002-1.jpg
 108.
Refer to the diagram above. The structure labeled f is called the ____________________.
 109.
Refer to the diagram above. The structure labeled b is called the ____________________.
 110.
Refer to the diagram above. A flower like this one has all four basic flower parts and thus is an example of a(n) ____________________ flower.
 111.
The transfer of pollen grains from an anther to a stigma is known as ____________________.
 112.
In angiosperms, seeds develop from the ____________________ inside a(n) ____________________ after an egg has been fertilized.
 113.
The event in which one sperm fertilizes an egg and a second sperm fuses with two nuclei is called _________________________.
 114.
A flower is a(n) ____________________ structure that produces pollen and seeds.
 115.
Flowers are a source of ____________________ for pollinators.
 116.
The seeds of angiosperms are enclosed in ____________________.
 117.
Because flowering plants are rooted in the ground and cannot move from place to place, they must disperse their ____________________ so that their offspring can grow in new environments.
 118.
Many fruits are spread by ____________________ that are attracted to sweet, fleshy fruits, which they use for food.
 119.
Many of the structures by which plants reproduce vegetatively are modified ____________________.
 120.
Bulbs, stolons, and tubers are examples of modified stems that allow plants to reproduce ____________________.

 
Check Your Work     Start Over

Insects

%CODE1%

Name: 

Insects

 

 

True/False
Indicate whether the sentence or statement is true or false.
1.
A flying insect carries pollen from one flower to pollinate other flowers of different species.
2.
Insects comprise the only group of invertebrates whose members are primarily terrestrial.
3.
Insects were the first animals to evolve wings.
4.
Flight enabled insects to search Earth’s surface for food, mates, and nesting sites.
5.
A major factor in the evolutionary success of insects is their ability to move to and survive in new environments.
6.
Insects destroy not only crops but also wood buildings and clothing.
7.
Butterflies undergo incomplete metamorphosis.
8.
Insects use pheromones, sounds, and light to attract mates.
9.
The honeybee’s round dance gives complete location information about a food source.
 

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
10.
From fossils, we know that insects were the first animals to evolve
a.
pincers on their front legs.
c.
jointed legs.
b.
stingers at the end of their tails.
d.
wings.
11.
The most diverse group of animals on Earth are the
a.
reptiles.
c.
insects.
b.
mammals.
d.
amphibians.
12.
Which of the following is not a characteristic of most insects?
a.
wings
c.
small size
b.
three body regions
d.
abdomen with three pairs of legs
13.
While insects destroy crops grown for human consumption, they also contribute to crop production by
a.
serving as food for many animals.
b.
pollinating crop plants.
c.
dying in the soil, and leaving behind nutrients.
d.
stimulating crop plants to grow faster.
14.
Malpighian tubules in insects
a.
remove wastes.
c.
carry Malpighian fluid.
b.
carry blood.
d.
are important in respiration.

      insects_files/i0140000.jpg
15.
Refer to the illustration above. Which of the organisms in the diagrams has a chitinous exoskeleton?
a.
Organism “A”
c.
Organism “C”
b.
Organism “B”
d.
Organism “D”

      insects_files/i0160000.jpg
16.
Refer to the illustration above. Mandibles are attached to the structure labeled
a.
“A.”
c.
“C.”
b.
“B.”
d.
“D.”
17.
Refer to the illustration above. The structure labeled “C” is called the
a.
diptera.
c.
boll.
b.
thorax.
d.
abdomen.
18.
Pheromones are used by ants to
a.
guide members of a colony back to their own nest.
b.
determine which ants will become queens of future colonies.
c.
ensure that females mate with only one male.
d.
warn members of a colony of adverse environmental conditions.
19.
Which of the following are the reproductive members of a honeybee colony?
a.
drones
c.
workers
b.
queen
d.
a and b
20.
Which of the following is the accepted explanation for the existence of sterile female worker bees?
a.
Because they are sterile, they do not have to use energy to produce eggs and therefore can use energy to collect food for other bees.
b.
Workers become sterile when they leave the nest to obtain food and are exposed to toxic substances.
c.
Workers pass on a lot of their own genes by helping their fertile sisters to survive and reproduce.
d.
Workers can become fertile females if they are fed queen factor.

 
Check Your Work     Reset

 

Introduction to Animals Quiz

%CODE1%

Name: 

Introduction to Animals

 

 

True/False
Indicate whether the sentence or statement is true or false.
1.
A tissue is a group of dissimilar cells that are organized into a functional unit.
2.
The development of a particular animal’s body plan depends on the animal’s environment, rather than on the genetic information it carries.
3.
Flatworms are bilaterally symmetrical and cephalized.
4.
The fluid in the body cavity of an animal acts as a medium of transport for nutrients and wastes.
5.
All chordates retain their postanal tail in their adult life.
6.
Most invertebrates have kidneys that filter waste products from the blood.
7.
Terrestrial animals have a protective outer covering that helps prevent excessive water loss.
8.
Segmentation is evident in vertebrates in the repeating bony units of their backbones and ribs.
9.
During spiral cleavage, each cell of the blastula rests directly above or below an adjacent cell.
10.
In a cnidarian, endoderm forms the outer tissue and nervous system.
 

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
11.
A group of similar cells organized into a functional unit is called
a.
a nervous system.
c.
a tissue.
b.
specialized cells.
d.
an organ.
12.
Most animals have a head that is located at the ____ end of their body and a tail that is located at the ____ end of their body.
a.
ventral; dorsal
c.
anterior; posterior
b.
dorsal; ventral
d.
posterior; anterior
      introduction_to_ani_files/i0150000.jpg
13.
Refer to the illustration above. The organism labeled “B” in the diagram
a.
is asymmetrical.
c.
exhibits radial symmetry.
b.
is bilaterally symmetrical.
d.
has reverse symmetry.
14.
Refer to the illustration above. The organism labeled “A” in the diagram
a.
has no symmetry.
c.
exhibits radial symmetry.
b.
is bilaterally symmetrical.
d.
has reverse symmetry.
15.
Which of the following is found in vertebrates but not in invertebrates?
a.
dorsal nerve cord
c.
three germ layers
b.
coelom
d.
bilateral symmetry
16.
A characteristic shared by all chordates at some stage of their development is
a.
a dorsal hollow nerve cord.
c.
pharyngeal pouches.
b.
a notochord.
d.
All of the above
17.
Which of the following is not a characteristic of the largest phylum of invertebrates, the arthropods?
a.
segmentation
c.
closed circulatory system
b.
exoskeleton
d.
digestive tract
18.
The acoelomate body type is exemplified by
a.
flatworms.
c.
mollusks.
b.
roundworms.
d.
annelids.
19.
Which of the following is an incorrect match?
a.
ectoderm—nervous system
c.
endoderm—muscular system
b.
mesoderm—skeletal system
d.
endoderm—digestive system
The diagrams below are cross sections of three types of animal bodies.
      introduction_to_ani_files/i0230000.jpg
20.
Refer to the illustration above. Humans have the type of body cavity shown in diagram
a.
“A.”
c.
“C.”
b.
“B.”
d.
None of the above

 
Check Your Work     Reset