Science shepherd bio ch 21-22

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Across
  1. 2. species that are able to emit their own light
  2. 3. spiral-shaped bacteria
  3. 6. a bacterial structure that forms in times of environmental stress and can develop again when conditions are favorable for growth
  4. 9. green algae; may be unicellular, colonial, filamentous or multicellular; photosynthetic
  5. 11. a process of sexual reproduction that occurs in some bacterial and protist organisms
  6. 12. fungus-like protists; protists which obtain energy by absorbing dead matter; slime molds and water molds
  7. 14. infection of the intestines caused by an amoeba
  8. 15. groups of individual algal cells that function together in a coordinated way
  9. 16. bacteria that can live with or without oxygen
  10. 19. bacteria that obtain their energy from the sun and their carbon from CO2; photosynthetic bacteria
  11. 20. able to cause disease
  12. 21. the way in which an members of phylum sarcodina move by sending out pseudopods
  13. 23. rod-shaped bacterial cell structure
  14. 24. two or more organisms that live together for their mutual benefit
  15. 25. a class of chemosynthetic Archaebacteria that produces methane as part of obtaining their carbon
Down
  1. 1. bacteria that die in the presence of oxygen
  2. 4. bacteria that obtain their energy from the sun and their carbon from organic matter
  3. 5. inactive
  4. 7. species that absorb their nutrients from dead and decaying matter
  5. 8. bacteria that require oxygen and die without it
  6. 10. bacteria killing
  7. 11. bacteria (organisms) that obtain their energy from inorganic substances
  8. 13. species which obtain their nutrients from the body fluids or tissues of living hosts
  9. 15. a bacteria cell shape which is not elongated enough to be a bacillus, but not spherical enough to be a coccus
  10. 17. part of the outer membrane of the Gram-negative bacterial cell wall
  11. 18. protein chemicals secreted by Gram-positive bacteria that are harmful to host tissues
  12. 22. A rapid and large growth of bacteria or algae on the water surface
  13. 26. autotrophic (Plant-like) protists; protists that obtain their energy through photosynthesis