Across
- 5. an animal or plant that lives in or on another living thing and takes nourishment
- 7. the rapid transformation of a larva into an adult that occurs with certain animals
- 8. controls the characteristics and growth of a cell
- 9. a community of living organisms and their interactions
- 11. a chemical substance that causes a specific effect in someone
- 12. molds, mildew and mushrooms
- 13. a large group of cells with high nuclear weight that gives strength and energy
- 14. the study of bacteria
Down
- 1. a group of complex proteins produced by living cells
- 2. infection in cells, usually causing sickness
- 3. composed DNA determining a characteristic of someone
- 4. a group of substances that are essential in small quantities for the function of the body
- 6. the transport of blood through the arteries
- 10. a y-shaped protein that helps the immune system identify and fight against bacteria and viruses
- 12. a remnant or representation of an organism that existed in a past age