Biology

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