| A | B |
|---|
| species | a group of organisms that can mate with each other and produce offspring which can also mate and reproduce |
| heterotroph | an organism that cannot make food for itself, and must obtain food by eating other organisms |
| autotroph | an organism that makes its own food |
| fertilization | the joining og egg and sperm |
| asexual reproduction | the process by which a single organism produces a new organism identical to itself |
| adaptation | a characteristic that helps an organism survive in its environment |
| herbivores | an animal that eats only plants |
| carnivores | an animal that eats only other animals |
| predators | a carnivore that hunts and kills other animals and has adaptations that help it capture the animals it preys upon |
| prey | an animal that a predator feeds upon |
| omnivore | an animal that eats both plants and animals |
| phylum | one of about 35 major groups into which biologists classify members of the animal kingdom |
| invertebrate | an animal that does not have a backbone |
| vertebrate | the bones that make up the backbone of an animal |
| sexual reproduction | the process by which a new organism forms from the joining of two sex cells |
| bilateral symmetry | object can be divided into halves |
| radial symmetry | object can be divided many times |
