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5 Written questions

5 Matching questions

  1. fossil
  2. parasitism
  3. keystone species
  4. mutagen
  5. autotroph
  1. a symbiotic relationship in which one organism lives in or on another organism (the host) and consequently harms it
  2. b physical or chemical agent that causes mutations
  3. c the remains (or an impression) of a plant or animal that existed in a past geological age and that has been excavated from the soil
  4. d a species that influences the survival of many other species in an ecosystem
  5. e organism that can capture energy from sunlight or chemicals and use it to produce its own food; also called a producer

5 Multiple choice questions

  1. one step in the line of descent of a family
  2. a part of the cell containing DNA responsible for growth and reproduction
  3. an organism that can make its own food
  4. decoding of a mRNA message into a polypeptide chain
  5. The inherited characteristic often masked by the dominant characteristic and not seen in an organism.

5 True/False questions

  1. phylogenetic treethe transfer of nitrogen from the atmosphere to the soil, to living organisms, and back to the atmosphere


  2. bacteriophagevirus that infects bacteria


  3. cell membranea rigid structure that surrounds the cell membrane and provides support to the cell; made of carbohydrates


  4. DNAa characteristic that an organism can pass on to its offspring through its genes.


  5. carbohydratea consumer that only eats other consumers


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