animals part 4

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adaptation
(physiology) the responsive adjustment of a sense organ (as the eye) to varying conditions (as of light)
amniotic egg
A shelled, water-retaining egg that enables reptiles, birds, and egg-laying mammals to complete their life cycles on dry land
anthropoid
any member of the suborder Anthropoidea including monkeys and apes and hominids
behavioral adaptation
an inherited behavior that helps an organism survive
binocular vision
ability to merge visual images from both eyes, which provides depth perception and a three-dimensional view of the world
bipedal
having two feet
camouflage
the act of concealing the identity of something by modifying its appearance
carapace
hard outer covering or case of certain organisms such as arthropods and turtles
cerebral cortex
the layer of unmyelinated neurons (the gray matter) forming the cortex of the cerebrum
crop
a pouch in many birds and some lower animals that resembles a stomach for storage and preliminary maceration of food
diversity
(n.) difference, variety; a condition of having many different types of forms
ectotherm
an animal whose body temperature varies with the temperature of its surroundings
endotherm
An animal whose body controls and regulates its temperature by controlling the internal heat it produces
gizzard
thick-walled muscular pouch below the crop in many birds and reptiles for grinding food
hominid
characterizing the family Hominidae, which includes Homo sapiens sapiens as well as extinct species of manlike creatures
hominoid
a primate of the superfamily Hominoidea
locomotion
the power or ability to move
mammals
vertebrates that live on land, fur or hair covers body, live birth, warm blooded
mammary gland
milk-secreting organ of female mammals
marsupial
mammals of which the females have a pouch (the marsupium) containing the teats where the young are fed and carried
migration
the periodic passage of groups of animals (especially birds or fishes) from one region to another for feeding or breeding
mimicry
the resemblance of an animal species to another species or to natural objects
monotreme
A mammal that lays eggs
opposable thumb
thumb that enables grasping objects and using tools
placenta
the vascular structure in the uterus of most mammals providing oxygen and nutrients for and transferring wastes from the developing fetus
plastron
(zoology) the part of a turtle's shell forming its underside
reptiles
vertebrates that live on land, scales cover body, lay eggs, cold blooded
subcutaneous fat
layer of fat cells beneath the skin that helps conserve body heat