| Term | Definition |
|---|
| Dinosaurs | Birds are descendants of what? |
| Preening | What is it called when a bird spreads oil on its feathers? |
| Rapsids | What are the ancestors of mammals? |
| Brooding | When a bird keeps the egg warm and sits on it what is it called? |
| Amniotic | What type of eggs do birds hatch? |
| Harder shells | Whats the diference between aligtor eggs with bird eggs? |
| Monotremes | These lay eggs, they have mammart glands (eww), and they have a fur coat. |
| Marsupials | They are puched, they include Kangaroos, Koalas, ECT. |
| Placental | They have a gestation period, The placenta attaches to the mothers embryo, The embryo stays in the moms belly. |
| 9,000 | How many species of birds are there? |
| Precocial | What do you call when something is hatched fully active. |
| Amniotic | What type of egg do birds have? |
| Down | What are the feathers that are fluffy and keep the birds warm. |
| to burn food | What is oxygen used for in mammals? |
| Breathing | What is the diaphram used for? |
| Contour | what type of feathers have side branches and good for flight? |
| T | T or F, Do birds have hollow bones? |
| Internal | What type of fertilization do birds have? |
| T | T or F, do some birds lay their eggs in other nests? |
| (mackenzie lol) Altricial | What are birds that are helpless, their eyes are closed? |
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