Chapter 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 an
vertebrae
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
backbone
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 ______ symmerty
NO
An ectotherm ‘s body temperature changes depending on the temperature of its ______________
envirnoment
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 _____, and chemical that controls an organism’s inherited characteristics
DNA
