Chapter 15 Birds and Mammals

15 terms by desertsurfer

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carnivore

animal that eats only other animals or the remains of animals

contour feather

strong, lightweight feathers that give their birds their coloring and shape and that are used for flight

down feather

soft, fluffy feathers that provide an insulating layer next to the skin of adult birds and that cover the body of younger birds

endotherm

vertebrate animal with a constant internal temperature

gestation period

period of which an embryo develops in the uterus

herbivore

animal that eats only plants or parts of plants

mammal

endothermic vertebrates that have hair, teeth specialized for eating certain foods, and whose females have mammary glands

mammary gland

milk producing glands of female mammals used to feed their young

marsupial

a mammal with an external pouch for the development of its young

monotreme

mammals that lay eggs with leathery shells

omnivore

animal that eats both plants and animals

placenta

sac-like organ in which a placental embryo develops

placental

a mammal whose offspring develops in a female uterus

preening

when a bird rubs oil from an oil gland to its wings to condition them

umbilical chord

connects the embryo to the placenta moves food and oxygen to the embryo and then removes its wastes

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