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| animals are many-celled organisms that must obtain their food by eating other organisms |
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| a tissue is a group of cells that perform a specific job |
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| a group of tissues that work together to do a specific job that is more complicated than the job the tissues do on their own |
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a group of organisms made up of one kind of plant or animal that can mate with each other and produce offspring |
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organisms that obtain food by eating other organisms -animals are heterotrophs |
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organisms that make their own food -plants are autotrophs |
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the joining of two sex cells -most animals produce offspring by sexual reproduction |
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| an organism produces an identical copy of itself |
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| a characteristic that helps an organism survive in its environment and reproduce |
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| animals that eat only plants |
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| carnivores capture PREY, the animals they feed upon |
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| animals that eat both plants and animals |
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| scientists have classified animals into about 35 main groups...each main group is calleda PHYLUM |
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| a chemical in cells that controls an organism's inherited characteristics |
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animals without backbones -ex. jeelyfish, worms, snails, crabs, spiders and insects |
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animals with backbones - ex. fishes, amphibians, reptiles, birds and mammals |
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| not the same, not balanced on both sides |
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| a balanced arrangement of parts around a center point |
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line symmetry can be divided into 2 halves that are mirror images |
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| animal whose body does not produce much internal heat |
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| animal whose body controls and regulates its temperature by controlling the internal heat it produces |
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waxy, waterproof outer shell ex. crabs, lobsters |
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an internal (inside) skeleton ex birds, fish, dogs |
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| animal that hunts, kills and eats other animals |
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