____ factors determine which type of algae species will predominate in tide pools in New England
a. Bottom-up
b. Top-up
c. Abiotic
d. Biological
e. Physical
D
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Which skeleton moves in response to muscular
contraction?
a. endoskeleton b. exoskeleton c. hydrostatic skeleton d. all of these e. none of these
The maintenance of the volume and composition of
body fluids is the primary responsibility of which system? a. integumentary b. immune c. digestive d. urinary e. circulatory
RNA interference is used to:
a. interfere with specific transcription factors. b. knock out the expression of a specific gene. c. prevent the duplication of DNA. d. cause a mutation in a specific gene. e. stimulate apoptosis.
We often hear young teenagers claim that oral sex doesn't count as "real" sex. Although oral sex won't cause pregnancy, it does have many of the same risks associated with "real" sex. Explain to one of these young teenagers what sorts of risks come with
alternative forms of sexual contact, such as oral sex. What will be an ideal response?