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of 613 available terms
(13 exact duplicates found)

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5 Written questions

5 Matching questions

  1. molecular clock
  2. tundra
  3. P site
  4. spirochete
  5. bacteriophage
  1. a evolutionary timing method based on the observation that at least some regions of genomes evolve at constant rates
  2. b a virus that infects bacteria; also called a phage
  3. c a biome at the northernmost limits of plant growth and at high altitudes, characterized by dwarf woody shrubs, grasses, mosses, and lichens
  4. d one of two of a ribosome's binding sites for tRNA during translation. It holds the tRNA carrying the growing polypeptide chain. (P stands for peptidyl tRNA.)
  5. e a large spiral-shaped (curved) prokaryotic cell

5 Multiple choice questions

  1. in a cladistic study of evolutionary relationships among taxa of organisms, the group of taxa that is actually being analyzed
  2. the use and reuse of chemical elements such as carbon within an ecosystem
  3. a digestive tube with two openings, a mouth and an anus.
  4. a embryonic stage that marks the end of cleavage during animal development; a hollow ball of cells in many species.
  5. comparing nucleic acids or other molecules to infer relatedness

5 True/False questions

  1. ecological species conceptthe definition of a species as a population or group of populations whose members have the potential in nature to interbreed and produce fertile offspring; also called a sexual species


  2. chaparrala diagram depicting patterns of shared characteristics among species


  3. decomposerthe scientific study of how organisms interact with their environments


  4. transfer RNA(rRNA) the type of ribonucleic acid that, together with proteins, makes up ribosomes; the most abundant type of RNA.


  5. decompositionanimal behavior in transmission of, reception of , and response to signals