A biome is most specifically defined as ____.

A biome is most specifically defined as ____.
 
  a. a vegetation type plus its associated microorganisms, fungi, and animals
  b. a biological community and the physical environment with which it interacts
  c. the total dry weight of plants present in a specific area at any given time
  d. an assemblage of species living in the same place
  e. a group of organisms of the same species living together at one time

Question 2

Which of the following do virtually all scientists agree is occurring?
 
  a. the distribution of populations is shrinking
  globally
  d. the Earths atmosphere and oceans are
  getting steadily warmer
  b. the distribution of polar species will
  contract to lower latitudes
  e. the biosphere is shrinking
  c. global warming will not change the timing
  of important biological events