Photosynthesis is essential to animal life because it provides

A. CO2 for respiration.
B. O2.
C. organic molecules.
D. Both b and c are correct.


Ans: D. Both b and c are correct.

Biology & Microbiology

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All of the following are included in the Basidiomycetes EXCEPT ________.

A. stolons B. yeasts C. smuts D. puffballs

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In humans, the type A and type B blood alleles are codominant to each other and both are completely dominant over the type O blood allele.

a. true b. false

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In living organisms, the molecule most associated with temperature stability is _____.

A) molecular oxygen B) sugar C) hemoglobin D) sodium chloride E) water

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