Multiple Choice
A community may undergo a regime shift or a phase shift when _______________.
A) pollutants cause a rapid rise in mutations
B) it loses a keystone species or suffers a major climatic change
C) it has too many symbiotic relationships among species
D) it suffers a natural fire or flood
E) all invasive and exotic species are removed
Correct Answer:

Verified
Correct Answer:
Verified
Q7: Which biome would be found primarily in
Q8: The energy content and biomass of _
Q9: Because of the rainshadow effect, _.<br>A)a dry
Q10: Fish that eat zooplankton are _.<br>A)primary consumers<br>B)detritivores<br>C)secondary
Q11: Discuss ways to control invasive species.
Q13: What ecological traits do successful invasive species
Q14: Give an example of how an invasive
Q15: By definition,herbivores _<br>A)break down leaf litter<br>B)are photosynthetic<br>C)consume
Q16: Kelp _.<br>A)is eaten by sea otters<br>B)is pollinated
Q17: By definition,parasites _ their hosts<br>A)never kill<br>B)kill<br>C)are much