Plants grow toward light through the action of
A) hormones.
B) nerves.
C) phytochrome.
D) chloroplasts.
Answer: A
Biology & Microbiology
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Mole percent (G+C) of DNA is useful for determining relatedness at the ________ level.
A. class B. genus C. kingdom D. None of the choices are correct.
Biology & Microbiology
As a cell increases in size, the surface area ________ and the volume ________.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
The (streptobacilli/actinomycetes/mycoplasmas) are a group of Gram-positive bacteria that form branching filaments resembling those of fungi
What will be an ideal response?
Biology & Microbiology
During which stage of development do cells arrange themselves into three layers?
A) organogenesis B) morula C) cleavage D) gastrulation
Biology & Microbiology