The exoskeleton of arthropods is composed of:

a. chitin.
b. silica.
c. cellulose.
d. calcium carbonate.
e. starch.


A

Biology & Microbiology

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Indicate whether the statement is true or false.

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When Calvin injected 14C labeled CO2 into cultures of green algae, what led him to conclude that rubisco adds CO2 to ribulose bisphosphate in the Calvin cycle?

A. Radioactivity appeared last in ribulose bisphosphate. B. Radioactivity first appeared in glucose. C. Radioactivity first appeared in ribulose bisphosphate. D. Radioactivity appeared last in glucose. E. Radioactivity first appeared in 3-phosphoglycerate. F. Radioactivity appeared last in 3-phosphoglycerate

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In biallelic populations, where allelic frequencies are indicated by p and q, the resultant genotype frequencies are indicated by what algebraic formula?

What will be an ideal response?

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The ________ receptor is a ligand-gated channel that transports chloride ions

Fill in the blank with correct word.

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