In a hypothetical land ecosystem, plants- the

primary producers- capture 1000 kilocalories
of sunlight energy per square meter per year.
Approximately, how many kilocalories of the
plant’s energy will be harvested by the third
trophic level?



a. 1
b. 10
c. 100
d. 1000
e. impossible to calculate


C

Biology & Microbiology

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The squares at #2 represent the ____ of the ____

a. genotypes; parents b. phenotypes; parents c. genotypes; offspring d. phenotypes; offspring e. none of these

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____________________ are rapidly dividing cells in the skin that take up pigment and die, pushing through the skin surface as a shaft of hair.

Fill in the blank(s) with the appropriate word(s).

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The fluids responsible for neutralizing the acidic chyme when it enters the small intestine come from which organ?

a. stomach b. colon c. pancreas d. liver

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