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what is an animal?
vocab
| Term | Definition |
|---|---|
| Species | group of organisms that can mate with each other and produce offspring |
| Heterotroph | organisms that cannot make food for itself |
| Autotroph | an organism that makes its own food |
| Sexual Reproduction | process by which a new organism forms by the joining of two sex cells |
| Fertilization | the joining of egg and sperm |
| Asexual Reproduction | process by which a single organism produces a new organism identical to itself |
| Adaption | a characteristic that helps an organism survive in its environment or reproduce |
| Herbivores | animals that eat only plants |
| Carnivores | animals that eat only other animals |
| Predators | animals that hunt and kill other animals |
| Prey | animals that get hunted and killed by predators |
| Omnivores | animals that eat both plants and animals |
| Phylum | 35 major animal groups |
| Invertebrate | an animal that does not have a backbone |
| Vertebrate | an animal that has a backbone |
| Bilateral Symmetry | line symmetry; the quality of being divisible into two halves that are mirror images |
| Radial Symmetry | the quality of having many lines of symmetry that all pass through a central point |
| Asymmetry | no symmetry at all |