Vocabulary
species, predator, prey, senses, herbivore, carnivore, omnivore, scavenger, animal, structure, function, mate, reproduce, alpha, organism, living, stimuli, reproduction, growth development, vertebrates, invertebrates, classified, characteristic, aquatic, scales, cold blooded, warm blooded, external, internal, mammal, reptile, amphibian, structure, function, Structure, function, organism, behavior, environment, internal, external, function, mammal, survival, respiratory system, carbon dioxide, oxygen, lungs, gills, extract, circulatory system, cells, muscular system, skeleton, nervous system, muscle, vertebrate, invertebrate, mollusk, insect, digestive system, reproduce, mate, ovaries, fertilize