Biology

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Across
  1. 1. constantly flowing fluid that provides oxygen, carbon dioxide removal, and nutrition
  2. 3. infective agent only seen by microscope
  3. 5. green pigment in plants used for light absorption
  4. 7. area with acids that digests foods in digestive system
  5. 9. system body system used for absorption of nutrients and removal of waste products
Down
  1. 1. central control area of the nervous system
  2. 2. group of spore-producing organisms
  3. 4. the interaction of organisms in a biological community
  4. 6. large unicellular organisms that can cause disease
  5. 8. animal that eats both plants and animals