Author: Biology Junction Team

Ecology Quiz

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Ecology Quiz

 

Test your knowledge of Ecology!

1. A cold biome characterized by permafrost under the surface?
a) Taiga
b) Tundra
c) Deciduous forest
d) Savanna2. An organism that feeds on plants and animals?
a) Carnivore
b) Omnivore
c) Epiphyte
d) Herbivore

3. All of the following are abiotic factors except:
a) Tree
b) Temperature
c) pH
d) Sunlight

4. Corals would be found in which zone:
a) Oceanic
b) Estuary
c) Neritic
d) Benthic

5. Which of the following is not part of the nitrogen cycle:
a) Ammonification
b) Transpiration
c) Nitrification
d) Rhizobacteria

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Dihybrid Crosses Quiz

%CODE1% Dihybrid Crosses Quiz

 

 

 

1. An organism of genotype AaBb can make gametes of all the following kinds except:

a. AB
b. Bb
c. aB
d. ab

 

2. If AaBb is crossed with aabb, what proportion of the offspring would be expected to be aabb?

a. 9/16
b. 1/8
c. 1/4
d. 1/16

 

3. If the offspring of a cross show a 9/16 to 3/16 to 3/16 to 1/16 ratio (9:3:3:1), the parents of the cross have the genotypes

a. AaBb x AaBb
b. AaBb x aaBB
c. aaBb x aabb
d. aaBb x Aabb

 

4. Whenever a capital letter is present, a red color is produced. In a cross of AaBb x AaBb, how many red offspring would you expect out of 16?

a. 1
b. 3
c. 9
d. 15

 

5. Assume that you mated two individuals heterozygous for each of two traits and obtained 80 offspring. How many of them would be expected to look like their parents?

a. 25
b. 45
c. 60
d. 80

 

6. Genes that assort independently are

a. located on different chromosomes
b. located on the same chromosome
c. alleles of each other
d. dominant

 

7. If W = purple flower and w = white, and D = tall plants and d = short plants, a wwDd plant would be

a. purple and tall
b. purple and short
c. white and tall
d. white and short

 

8. If two true-breeding parents are crossed with each other and all the offspring have their mother’s ears and their father’s tail, the parents in the cross would be

a. EETT x eett
b. eeTT x EEtt
c. EeTt x EeTt
d. eeTt x Eett

 

9. If aaBb is crossed with AAbb, what proportion of the offspring will be AAbb?

a. 0
b. 3/16
c. 9/16
d. 1/4

 

10. If AaBb is crossed with AaBb, what proportion of the offspring will be dominant for the ‘A/a’ trait and recessive for the ‘B/b’ trait (i.e. A-bb)?

a. 9/16
b. 3/16
c. 1/16
d. 0

 

 

Echinoderm

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Name: 

Echinoderm

 

 

True/False
Indicate whether the sentence or statement is true or false.
1.
Chordates and echinoderms have a common ancestor.
2.
None of the echinoderms living in the oceans today is sessile.
3.
In addition to radial symmetry, echinoderms have a water-vascular system.
4.
The hard, spiny skin of an echinoderm is called an exoskeleton.
5.
All echinoderms except the sand dollar display a five-part radial symmetry.
6.
The adult form of all echinoderms exhibits radial symmetry.
7.
Sea stars are carnivores and are among the most important predators in many marine ecosystems.
8.
In some echinoderms, respiration and waste removal are performed by skin gills.
9.
A separated piece of a sea star can regenerate the rest of its body as long as the piece contains part of the central region of the animal.
 

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
10.
Embryological evidence suggests that the echinoderms are closely related to the
a.
vertebrates.
c.
annelids.
b.
arthropods.
d.
arachnids.
11.
The first organisms to develop a hardened endoskeleton were the
a.
echinoderms.
c.
arthropods.
b.
annelids.
d.
chordates.
12.
Echinoderms
a.
are radially symmetrical as larvae and as adults.
b.
have an exoskeleton as adults.
c.
are bilaterally symmetrical as larvae and radially symmetrical as adults.
d.
are radially symmetrical as larvae and bilaterally symmetrical as adults.
13.
The symmetry exhibited by echinoderms is
a.
bilateral.
c.
radial.
b.
spherical.
d.
mirror image.
14.
In echinoderms and chordates, all the cells of the early embryo
a.
are controlled by molecules within the egg.
b.
form the “first mouth.”
c.
fall into four different categories.
d.
are identical.
15.
The skeleton of an echinoderm is composed of individual plates called
a.
ocelli.
c.
odonata.
b.
ossicles.
d.
isopods.
16.
sea cucumbers : a fused skeleton ::
a.
sea urchins : a five-part body plan
c.
sand dollars : endoskeletons
b.
sea urchins : distinct arms
d.
sea urchins : endoskeletons
17.
Vertebrates, tunicates, and lancelets
a.
are all members of the phylum Chordata.
b.
all have a backbone in the adult stage.
c.
are all marine fish.
d.
are all terrestrial heterotrophs.
18.
Which embryonic chordate characteristics do lancelets retain as adults?
a.
notochord
b.
notochord and dorsal nerve cord
c.
notochord, dorsal nerve cord, and postanal tail
d.
notochord, dorsal nerve cord, postanal tail, and pharyngeal pouches
19.
tunicates : in shallow- and deep-water environments ::
a.
lancelets : buried in mud or sand
b.
lancelets : swimming near the water’s surface
c.
tentacles : in sea urchin mouths
d.
ossicles : in lancelets
20.
Some scientists have hypothesized that the first vertebrates, which were fish, may have evolved from an ancestral tunicate that became sexually mature in the larval form. They suggest that these reproducing larvae were successful and natural selection reinforced the absence of metamorphosis to the adult. Which of the following statements does not support the hypothesis that vertebrates evolved from a sexually mature larval tunicate?
a.
Many invertebrates, tunicate larvae and adults, and the earliest vertebrates are or were filter feeders.
b.
Adult tunicates are sessile and larval tunicates are free-swimming.
c.
The vertebral column of adult vertebrates replaces the notochord present in embryonic vertebrates.
d.
Some living urochordates exist only as free-swimming larvae.


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Internal Anatomy of the Fetal Pig Exam

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Internal Anatomy of the Fetal Pig Exam

1. What does the letter L refer to in the figure of the internal anatomy of the fetal pig?

Answer:

 

2. In the figure of the internal anatomy of the fetal pig, what letter refers to the thyroid gland?

Answer:

 

3. In the figure of the internal anatomy of the fetal pig, what letter refers to the left lung?

Answer:

 

4. What does the letter C refer to in the figure of the internal anatomy of the fetal pig?

Answer:

5. What does the letter J refer to in the figure of the internal anatomy of the fetal pig?

Answer:

 

6. In the figure of the internal anatomy of the fetal pig, what letter refers to the urinary bladder?

Answer:

 

7. What does the letter M refer to in the figure of the internal anatomy of the fetal pig?

Answer:

 

8. What does the letter A refer to in the figure of the internal anatomy of the fetal pig?

Answer:

 

9. In the figure of the internal anatomy of the fetal pig, what letter refers to the diaphragm?

Answer:

10. What does the letter F refer to in the figure of the internal anatomy of the fetal pig?

Answer:

 

11. In the figure of the internal anatomy of the fetal pig, what letter refers to the liver?

Answer:

 

12. In the figure of the internal anatomy of the fetal pig, what letter refers to the right common carotid artery?

Answer:

 

13. What does the letter N refer to in the figure of the internal anatomy of the fetal pig?

Answer:

 

14. What does the letter G refer to in the figure of the internal anatomy of the fetal pig?

Answer:

15. What does the letter E refer to in the figure of the internal anatomy of the fetal pig?

Answer:

 

16. In the figure of the internal anatomy of the fetal pig, what letter refers to the small intestine?

Answer:

 

17. In the figure of the internal anatomy of the fetal pig, what letter refers to the heart?

Answer:

 

18. In the figure of the internal anatomy of the fetal pig, what letter refers to the umbilical vein?

Answer:

 

19. What does the letter B refer to in the figure of the internal anatomy of the fetal pig?

Answer:

20. In the figure of the internal anatomy of the fetal pig, what letter refers to the larynx?

Answer:

 

21. What does the letter K refer to in the figure of the internal anatomy of the fetal pig?

Answer:

 

22. In the figure of the internal anatomy of the fetal pig, what letter refers to the left common carotid artery?

Answer:

 

23. In the figure of the internal anatomy of the fetal pig, what letter refers to the umbilical arteries?

Answer:

 

24. In the figure of the internal anatomy of the fetal pig, what letter refers to the large intestine?

Answer:

25. What does the letter H refer to in the figure of the internal anatomy of the fetal pig?

Answer:

 

26. What does the letter I refer to in the figure of the internal anatomy of the fetal pig?

Answer:

 

27. What does the letter D refer to in the figure of the internal anatomy of the fetal pig?

Answer:

 

28. In the figure of the internal anatomy of the fetal pig, what letter refers to the right lung?

Answer:

 

This is the end of the test. When you have completed all the questions and reviewed your answers, press the button below to grade the test.

Fish

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Name: 

Fish

 

 

True/False
Indicate whether the sentence or statement is true or false.
1.
Lobe-finned fishes were the ancestors of amphibians.
2.
Small, jawed fishes are the first vertebrates for which there is fossil evidence.
3.
Fishes and amphibians first appeared on Earth during the Cambrian period, about 550 million years ago.
4.
A fish’s gills would collapse on land.
5.
Since they live in salt water, marine fishes do not have a problem maintaining the proper balance of water and salt in their body.
6.
The first fishes to develop jaws were called spiny fishes, members of the class Acanthodia.
7.
Sharks have good vision and can detect electromagnetic fields coming from prey animals.
8.
Members of the class Osteichthyes have skeletons of cartilage.
9.
Bony fishes have a swim bladder.
10.
In order to fill their swim bladders, bony fishes have to come to the surface to gulp air.
 

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
11.
Which of the following would not be an advantage of the endoskeleton found in all vertebrates?
a.
It protects internal body structures.
b.
It aids in movement.
c.
It helps prevent desiccation in terrestrial vertebrates.
d.
It provides structural support in terrestrial vertebrates.
12.
The urinary bladder and kidneys make up the ____ of a fish.
a.
respiratory system.
c.
excretory system.
b.
digestive system.
d.
circulatory system.
13.
The first vertebrates
a.
were jawless fishes.
b.
had thick, bony plates that covered their bodies.
c.
had no well-developed vertebral column.
d.
All of the above
14.
placoderms : armor ::
a.
bony fishes : cartilaginous skeleton
b.
sharks : no teeth
c.
lampreys : jaws
d.
sharks and bony fishes : streamlined bodies
15.
bony fishes : stronger muscles ::
a.
bony fishes : lungs
c.
sharks : ray fins
b.
sharks : bony skeleton
d.
sharks : rows of teeth
16.
Which of the following senses is not used by sharks to detect prey?
a.
olfaction
c.
lateral-line system
b.
vision
d.
touch
17.
The eggs of many species of sharks
a.
are released from the mother’s body before fertilization.
b.
are released from the mother’s body after fertilization.
c.
are released from the mother’s body after developing into young embryos.
d.
hatch inside the mother’s body, where the young sharks continue to grow.
18.
Members of the class Osteichthyes
a.
have skeletons made of bone.
c.
include the rays and skates.
b.
do not have jaws.
d.
All of the above
19.
A collection chamber that reduces the resistance of blood flow into the heart of a fish is called the
a.
sinus venosus.
c.
conus arteriosus.
b.
ventricle.
d.
atrium.
20.
The countercurrent flow of water and blood found in the gills of fishes
a.
allows blood and water to flow in the same direction.
b.
ensures that oxygen diffuses into the blood over the whole length of the blood vessels in the gills.
c.
results in an uneven supply of oxygen reaching the blood vessels in the gills.
d.
hampers the diffusion of oxygen and carbon dioxide between the blood and the water.

 
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