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5 Written questions

5 Matching questions

  1. speciation
  2. macroevolution
  3. biological species concept
  4. species
  5. hybrid
  1. a An evolutionary process in which one species splits into two or more species.
  2. b A population or group of populations whose members have the potential to interbreed in nature and produce viable, fertile offspring, but do not produce viable, fertile offspring with members of other such groups.
  3. c Offspring that results from the mating of individuals from two different species or from two true-breeding varieties of the same species.
  4. d Definition of a species as a group of populations whose members have the potential to interbreed in nature and produce viable, fertile, offspring, but do not produce viable, fertile offspring with members of other such groups.
  5. e Evolutionary change above the species level. Examples of this type of change include the origin of a new group of organisms through a series of speciation events and the impact of mass extinctions on the diversity of life and its subsequent recovery.

5 Multiple choice questions

  1. The existence of biological factors (barriers) that impede members of two species from producing viable, fertile offspring.
  2. A chromosomal alteration in which the organism possesses more than two complete chromosome sets. It is the result of an accident of cell division.
  3. The formation of new species in populations that live in the same geographic area.
  4. A fertile individual that has more than two chromosome sets as a result of two different species interbreeding and combining their chromosomes.
  5. A definition of species in terms of measurable anatomical criteria.

5 True/False questions

  1. autopolyploidAn individual that has more than two chromosome sets that are all derived from a single species.

          

  2. phylogenetic species conceptA definition of species as the smallest group of individuals that share a common ancestor, forming one branch on the tree of life.

          

  3. hybrid zoneA geographic region in which members of different species meet and mate, producing at least some offspring of mixed ancestry.

          

  4. microevolutionEvolutionary change above the species level. Examples of this type of change include the origin of a new group of organisms through a series of speciation events and the impact of mass extinctions on the diversity of life and its subsequent recovery.

          

  5. reinforcementIn evolutionary biology, a process in which natural selection strengthens prezygotic barriers to reproduction, thus reducing the chances of hybrid formation. Such a process is likely to occur only if hybrid offspring are less fit than members of the parent species.

          

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