SNAB Topic 4: Biodiversity and Natural Resources

• The Scottish wildcat can interbreed successfully with domestic cats. Explain the effect this could have on the genetic diversity of the Scottish wildcat.

  Increases genetic diversity because of introduction of new alleles into the population.
• Allele Definition:

  An alternative form of a gene.
• Explain how the information in the table can be used to show that the Archaea are more closely related to the Eukaryota than to the Bacteria.

  • More similarities between archaea and eukaryota
  • More differences between archaea and bacteria
  • 2 specific similarities from table
  • so more recently they have evolved from a common ancestor
• (i) Describe what needs to be measured in order to compare the biodiversity of two rainforests.

  • Measure species richness
  • Determine population size of each species
• State what is meant by the term endemic.


  Specific to one geographical location