All of the following are required for the Calvin cycle EXCEPT

A. CO2.
B. H2O.
C. ATP.
D. NADPH.
E. rubisco.


B. H2O.

Biology & Microbiology

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A protein called actin consists of 376 amino acids. The mRNA for actin must be longer than

A. 125 nucleotides. B. 376 nucleotides. C. 1128 nucleotides D. 3384 nucleotides.

Biology & Microbiology

Why don't ants that protect the Acacia tree scare off bees trying to pollinate the tree's flowers?  

A.  They can't climb to the tops of the tree. B.  The bees are too big. C.  The bees fly in and out quickly. D.  The open flowers contain a chemical that is an ant deterrent. E.  Parasitoid wasps protect the bees from attack.

Biology & Microbiology

Leptin, an appetite-suppressing hormone, is secreted by ________

a. the brain b. fat cells c. the intestines d. kidneys

Biology & Microbiology

What evidence was used to determine that the

last universal common ancestor of all life lived about 4.3 million years ago?

a. fossils of prokaryotic cells b. genome comparisons between all living things c. life found in meteorites d. fossil cladistic analysis e. more than one of these

Biology & Microbiology