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Chapter 3 Vocab
Chapter 3 Vocab Part 1, 2
Word | Definition |
---|---|
chordates | The phylum whose members have a notochord, a nerve a chord, and pouches in their throat area at some point in their life. |
notochord | A flexible rod that supports a chordate's back. |
vertebrae | The bones that make up the backbone of an animal. |
ectotherm | An animals whose body does not produce much internal heat. |
endotherm | An animal whose body regulates its own temperature by controlling the internal heat it produces. |
fish | A vertebrate that lives in water and uses fins to move. |
cartilage | A tissue that is more flexible than bone. |
swim bladder | An internal gas-filled organ that helps a bony fish stabilize its body at different water depths. |