When does bone remodeling occur?
Until teenage years
When tiny cracks in bones occur after a jump from a high place
Bone remodeling is a lifelong process
Both B and C
d. Both B and C
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RNA polymerase II differs from RNA polymerase I and III by having
A) fewer amino acids at the N-terminus. B) additional amino acids at the N-terminus. C) fewer amino acids at the C-terminus. D) additional amino acids at the C-terminus. E) individual amino acids, but all three RNA polymerases are the same size.
One effect of auxin, which triggers the elongation of cells, is to affect cell walls by increasing their
A. permeability. B. plasticity. C. stiffness. D. thickness. E. water solubility.
The pollen tube grows from the ________ to the ________, where it eventually fertilizes the egg
A) anther; style B) sepal; filament C) stigma; ovule D) petal; ovary
A characteristic that is common to cnidarians is:
A) a medusa stage in the life cycle. B) stinging cells. C) that they create coral reefs. D) a complete digestive tract. E) an osculum.