biology 2

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Across
  1. 1. exercise intended to improve the of the body's cardiovascular system in absorbing and transporting oxygen.
  2. 4. substance forming the cell walls of many bacteria, consisting of glycosaminoglycan chains interlinked with short peptides.
  3. 5. a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles.
  4. 7. is a thin, rigid fiber made of protein that protrudes from the cell surface.
  5. 8. of reproduction not involving the fusion of gametes
  6. 9. exercise that does not improve or is not intended to improve the efficiency of the body's cardiovascular system
  7. 10. fission asexual reproduction common among prokaryotes wherein a cell divides giving rise to two cells,
Down
  1. 1. medicine that inhibits the growth of or destroys microorganisms.
  2. 2. slender threadlike structure that enables many protozoa, bacteria, spermatozoa, etc..
  3. 3. a member of a large group of unicellular microorganisms that have cell walls but lack organelles
  4. 6. an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.
  5. 7. a genetic structure in a cell that can replicate independently of the chromosomes, tlaboratory manipulation of genes.