Gibberellin stimulates ____.

A. fruit ripening
B. leaf abscission
C. lateral root formation
D. stem lengthening between the nodes
E. stem lengthening at the tip


Answer: D

Biology & Microbiology

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During ____ , N2 within the atmosphere is converted to NH3. Primary producers can then use the nitrogen from NH3 to build organic compounds

Fill in the blank with the appropriate word.

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When a neuron undergoes a change in membrane potential that is proportional to (i.e., varies depending on) the strength of the stimulus given to that neuron, this is referred to as a/an

A. equilibrium potential. B. action potential. C. resting potential. D. reversal potential. E. graded potential.

Biology & Microbiology

Which of the following characteristics do all viruses have in common?

A. They are all non-living. B. They all have DNA genomes. C. They all have a broad host range. D. They all infect eukaryotes. E. They all contain a capsid surrounded by a fatty envelope.

Biology & Microbiology

The chemical agent/s that produce/s highly reactive hydroxyl-free radicals and also decomposes to O2 gas is ________.

A. iodophors B. hydrogen peroxide C. chlorhexidine D. Cidex E. cationic detergents

Biology & Microbiology