ch 9 final Flashcards
which vertebrate group lays eggs and has feathers
bird
which of these animals has radial symmetry
a sea anemone
an animal that has a back bone is called a
vertebrate.
What is a characteristic of many invertebrate groups?
exoskeleton
Major functions of animals include obtaining food and oxygen, keeping internal conditions stable, movement, and
reproduction
If an animal is an ectotherm, it has
a body that does not produce much internal heat.
At some point in their lives, all chordates have a flexible supporting rod in their backs called a
notochord.
When the temperature of the environment changes, the body temperature of a reptile
changes
What does the backbone surround and protect in a vertebrate?
the spinal cord
Which of the following is a characteristic shared by all animals?
Their bodies have many cells
Mammals and ____________________ are the two groups of vertebrates that are endotherms.
birds
An animal may have radial symmetry, bilateral symmetry, or ____________________ symmetry.
no
An ectotherm’s body temperature changes depending on the temperature of its ____________________.
environment
Animals in the mammal group called __________________ allow their young to develop in a pouch on their mother’s body
marsupials
Classifying animals involves comparing their ____________________, a chemical that controls an organism’s inherited characteristics.
DNA
