Science ch 9 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 backbone is called
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 are called
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 two groups of vertebrates that are endotherms
birds
an animal may have radial symmetry, bilateral symmetry, or _______ symmetry
no
An ectotherms 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 inherited characteristics
DNA
