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? |