| A | B |
|---|
| species | group of organisms that can mate with each other |
| heterotroph | cannot make its own food |
| autotroph | makes its own food |
| fertilization | joining of an egg and sperm |
| adaptation | a characteristic that helps an orgaism survive in its environment or reproduce |
| herbivore | animals that eat only plants |
| omnivore | animals that eat both plants and animals |
| carnivore | animals that only eat other animals |
| phylum | 35 major groups of animals |
| invertebrate | an animal that does not have a backbone |
| vertebrate | an animal that has a backbone |
| prey | animals predators feed upon |
| predator | hunt and kill other animlas |
| sexual reproduction | new organism forms from the joining of two sex cells |
| asexual reproduction | a single organism produces a new organism identical to itself |
| organ | a group of tissues that work together to perform a specific job |
