Exam 17: Communities of Organisms

Antibiotic therapy sometimes reduces the population of gut-inhabiting microorganisms.Bloating and diarrhea often follow until the populations reestablish themselves.This observation suggests that these microorganisms participate in a(n)________ relationship with humans.

Which of the following would probably NOT occur if a single species was removed from an ecological community?

Which of the following is a true statement?

During ________ a newly created habitat is inhabited.

Which of the following communities would be considered to have the greatest species richness?

In comparing the two communities shown,

The total number of different species living within a community is referred to as

Which of the following could represent the linear flow of energy within a food web?

Undisturbed communities with species compositions that remain stable over time are referred to as

A measurement of how common one species is compared to another species is referred to as

Which example best illustrates interference competition?

The removal of a keystone species from a community usually results in

Match each term to a statement listed below. -a fish that consumes parasites found on a shark

Once a climax community develops,is it likely to remain that way indefinitely?

________ consumers feed on primary consumers as part or all of their diet.

In comparing the two communities shown,

The relationship between house pets and people would be best described as

Human cells contain mitochondria,which are responsible for processing the energy needed by our cells.Remember that the ancestors of mitochondria may once have been free-living prokaryotes.If mitochondria were still considered to be separate organisms within our cells,which of the following would best describe our relationship with them?

Compare and contrast exploitative and interference competition.

Into which category would a human be assigned when eating pepperoni pizza?