Prentice Hall Biology Chapter 31
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basketball4evr on April 19, 2012
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15 terms
Terms | Definitions |
|---|---|
 characteristics of reptiles | dry, scaly skin; amniotic egg; lungs; ectotherm; oviparous; cloaca; 3-chambered heart |
| circulatory | double-loop system |
| type of fertilization | internal fertilization |
| parts of the amniotic egg | amnion, chorion, yolk sac, allantois |
| amnion | fluid-filled sac that surrounds and cushions the developing embryo |
| chorion | regulates the transport of oxygen from the surface of the egg to the embryo and the transport of carbon dioxide, one product of respiration, in the opposite direction |
| yolk sac | contains yolk that serves as a nutrient-rich food supply for the embryo |
| allantois | stores wastes produced by the embryo. |
| parts of turtle shell | carapace (dorsal) and plastron (ventral) |
| characteristics of birds | feathers, wings, scaly legs, endotherm, cloaca, 4-chambered heart, amniotic egg, incubated egg, oviparous |
| types of feathers | contour and down |
| crop | produces substances that are rich in fat and protein to feed young birds |
| stomach | 1st chamber mixes acids and enzymes into food & ta gizzard (2nd chamber) breaks down food |
| air sacs | allow one-way flow of air |
| birds can fly because of this | powerful chest muscle, aerodynamic wings and feathers, light bones/skeleton, hollow bones |
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