Which plant organs are often connected to a petiole, may be either simple or compound, and are typically the main organs of photosynthesis and gas exchange?

a. trichomes
b. flowers
c. stems
d. leaves


Ans: d. leaves

Biology & Microbiology

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Explain why enzyme replacement therapy cannot cure a genetic disease, and why gene therapy offers the only cure

What will be an ideal response?

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In the tropisms with which it is involved, auxin

causes

a. rapid cell division. b. hardening of cell walls. c. cell elongation. d. increased plasma membrane permeability. e. increased protein synthesis

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If the relative fitness value is w = 0.6, what is the selection coefficient used to identify the differences between the fitnesses of organisms with different traits?

What will be an ideal response?

Biology & Microbiology

Genetic drift resulting from a disaster that drastically reduces population size is called

A) natural selection. B) gene flow. C) the bottleneck effect. D) the founder effect.

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