Across
- 3. A structure in the body that is composed of different kinds of tissue
- 6. A group of similar cells that perform the same function
- 7. A behavior or physical characteristic that allows an organism to survive or reproduce in its environment
- 9. An animal that has a backbone
- 10. The joining of a sperm and an egg
Down
- 1. A reproductive process that involves two parents that combine their genetic material to produce a new organism which differs from both parents
- 2. An animal that does not have a backbone
- 4. One of the major groups into which biologist classify members of a kingdom
- 5. A reproductive process that involves only one parent and produces offspring that are identical to the parent
- 8. The basic unit of structure and functioning in living things