NAME

Question Types


Start With


Question Limit

of 20 available terms

Advertisement Upgrade to remove ads

5 Written Questions

5 Matching Questions

  1. reproductive isolation
  2. hybrid
  3. macroevolution
  4. hybrid zone
  5. phylogenetic species concept
  1. a A definition of species as the smallest group of individuals that share a common ancestor, forming one branch on the tree of life.
  2. b 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.
  3. c A geographic region in which members of different species meet and mate, producing at least some offspring of mixed ancestry.
  4. d Offspring that results from the mating of individuals from two different species or from two true-breeding varieties of the same species.
  5. e The existence of biological factors (barriers) that impede members of two species from producing viable, fertile offspring.

5 Multiple Choice Questions

  1. An evolutionary process in which one species splits into two or more species.
  2. A definition of species in terms of measurable anatomical criteria.
  3. In 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.
  4. A reproductive barrier that impedes mating between species or hinders fertilization if interspecific mating is attempted.
  5. A chromosomal alteration in which the organism possesses more than two complete chromosome sets. It is the result of an accident of cell division.

5 True/False Questions

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

          

  2. speciesAn evolutionary process in which one species splits into two or more species.

          

  3. sympatric speciationThe formation of new species in populations that live in the same geographic area.

          

  4. allopolyploidA fertile individual that has more than two chromosome sets as a result of two different species interbreeding and combining their chromosomes.

          

  5. 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.

          

Create Set