Major functions of animals include obtaining food and oxygen, keeping internal conditions stable (homeostasis), movement, and reproduction.
100
An animal that has a backbone is called a(n)
vertebrate
100
When the temperature of the environment decreases, the body temperature of a reptile
Decreases
100
What does the backbone surround and protect in a vertebrate?
The Spinal Cord
100
Which vertebrate group lays eggs and has feathers?
Birds
200
True or False: a characteristic shared by all animals is that they all have skeletons.
False: a characteristic shared by all animals is that they all have cells
200
Give an example of an animal that has radial symmetry.
Sponges, sea anemones, jelly fish, sea dollars
200
Describe the difference between an endoskeleton and an exoskeleton.
Endoskeleton - Skeleton provides structure to organism and is surrounded by muscles and skin tissue.
Exoskeleton - Skeleton is an outer layer of protection for the organism.
200
At some point in their lives, all chordates have a flexible supporting rod in their backs called a
Notochord
200
Animals in the mammal group called __________________ allow their young to develop in a pouch on their mother’s body.