Birds & Mammals Study Guide
|What replaces teeth in modern birds?
|How many chambers are there in a bird’s heart? a mammal’s heart?
|Name 2 vertebrate groups that lay amniote eggs?
|Did all fossilized birds have beaks? Explain.
|Do most terrestrial vertebrates use internal or external fertilization?
|Which mammal group carries its young in a pouch?
|What mammal order lives entirely in water?
|What characteristic of retile, bird, & mammal skin allows them to live on land?
|Give several uses for hair or fur in mammals.
|Name 2 main characteristics of all mammals.
|What determines the type of teeth a mammal will have?
|What group of mammals are egg layers?
|What is the purpose of the placenta?
|List several ways that birds are different from reptiles.
|What were the earliest flying vertebrates?
|From what group did birds probably arise?
|Besides amniote eggs & living on land, name another way reptiles & birds are alike?
|What group of mammals remain inside the mother until they are completely developed?
|What mammal group has forelimbs modified into flippers?
|What type of teeth are found in deer?
|Name 2 sirenians.
|What mammal group is born immature & finishes developing in the mother’s pouch?
|In what order are dogs found?
|Give 2 uses for the sounds that bats make? Can humans hear these sounds?
|Name 2 marsupial mammals.
|Echidnas & duck billed platypus are what type of mammals?
|What are monotremes?
|What are placental mammals?
|Feathers are modified __________.
|Describe the bones of birds.
|What is the purpose of the crop in birds?
|Birds excrete their nitrogenous waste as ____________.
|Why is a bird’s respiration so efficient?
|What are talons & what is their function?
|Do all songbirds produce songs? Explain.
|Where is the diaphragm located in mammals? What is its purpose?
|Give the function of the syrinx in birds.
|Reptiles called therapsids gave rise to what vertebrate group?
|What type of teeth would carnivorous mammals have?