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SAT® Subject Test in Biology

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Difficult

Level of Species Biodiversity

SATBIO-6KYIYV

Data regarding four communities and the number of organisms of the different species found there are listed below.

Community V

Species Sugar Maple Witch Hazel Sassafras Red Oak White Oak Basswood American Elm JackPine
Abundance 30 10 2 2 2 2 1 1

Community W

Species Sugar Maple Red Oak
Abundance 25 25

Community X

Species Sugar Maple Red Oak Witch Hazel Basswood American Elm
Abundance 10 10 10 10 10

Community Y

Species Sugar Maple Red Oak Witch Hazel Basswood American Elm
Abundance 2 2 42 2 2

Community Z

Species Sugar Maple
Abundance 50

Which community has the greatest species biodiversity and why?

A

Community V because it has the most different species represented.

B

Community W because there are only two species represented with a large number of organisms.

C

Community X because there are five species represented with an equal number of each species.

D

Community Y because there are five species represented with one of the speices having a large number of organisms.

E

Community Z which has a large number of one species represented.