1 anthropoid - primate group made up of humans, apes, and most monkeys.
2 binocular vision - ability to merge visual images from both eyes, which provides depth perception and a three-dimensional view of the world.
3 bipedal - term used to refer to two-footed locomotion.
4 cerebral cortex - outer layer of the cerebrum of a mammal's brain; center of thinking and other complex behaviors.
5 diaphragm - large, flat muscle at the bottom of the chest cavity that helps with breathing.
6 hominid - primate that walks upright, has opposable thumbs, and possesses a large brain; only living members are humans.
7 homonoid - anthropoid group that includes apes and humans.
8 mammary gland - gland in mammals that produces milk to nourish the young.
9 marsupial - mammal which bears live young that complete their development in an external pouch.
10 monotreme - egg-laying mammal.
11 opposable thumb - thumb that enables grasping objects and using tools.
12 placenta - organ in placental mammals through which nutrients, oxygen, carbon dioxide, and wastes are exchanged between embryo and mother.
13 prehensile - term used to refer to a long tail that can grasp branches.
14 prosimian - small, nocturnal primate that has large eyes for seeing in the dark.
15 rumen - stomach chamber in cows and related animals in which newly swallowed plant food is stored and processed.
16 subcutaneous fat - layer of fat cells beneath the skin that helps conserve body heat.
2 binocular vision - ability to merge visual images from both eyes, which provides depth perception and a three-dimensional view of the world.
3 bipedal - term used to refer to two-footed locomotion.
4 cerebral cortex - outer layer of the cerebrum of a mammal's brain; center of thinking and other complex behaviors.
5 diaphragm - large, flat muscle at the bottom of the chest cavity that helps with breathing.
6 hominid - primate that walks upright, has opposable thumbs, and possesses a large brain; only living members are humans.
7 homonoid - anthropoid group that includes apes and humans.
8 mammary gland - gland in mammals that produces milk to nourish the young.
9 marsupial - mammal which bears live young that complete their development in an external pouch.
10 monotreme - egg-laying mammal.
11 opposable thumb - thumb that enables grasping objects and using tools.
12 placenta - organ in placental mammals through which nutrients, oxygen, carbon dioxide, and wastes are exchanged between embryo and mother.
13 prehensile - term used to refer to a long tail that can grasp branches.
14 prosimian - small, nocturnal primate that has large eyes for seeing in the dark.
15 rumen - stomach chamber in cows and related animals in which newly swallowed plant food is stored and processed.
16 subcutaneous fat - layer of fat cells beneath the skin that helps conserve body heat.