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Life Sci - Chap 16
Question | Answer |
---|---|
vertebrate | animal that has a backbone |
endotherm | animal that can use body heat from chemical reactions in the body's cells to maintain a constant body temperature |
ectotherm | organism that needs sources of heat outside itself |
lateral line | faint line visible on both sides of a fish's body that runs the length of the body and marks the location of sense organs that detect vibrations in the water |
gill | respiratory organ where oxygen from the water is exchanged with carbon dioxide from the blood (fish) |
swim bladder | in bony fishes, a gas-filled sac that is used to control buoyancy; also known as gas bladder |
lung | respiratory organ where oxygen from the air is exchanged with carbon dioxide from the blood (non fish) |
tadpole | aquatic, fish-shaped larva of a frog or toad |
metamorphosis | phase in the life cycle of many animals during which a rapid change from the immature form of an organism to the adult form takes place |
amniotic egg | type of egg that is surrounded by a membrane and that in reptiles, birds and egg-laying mammals contains a large amount of yolk and is surrounded by a shell |