What stimulates milk production in mammary alveoli?
A. oxytocin
B. prolactin
C. chorionic gonadotropin
D. progesterone
E. estrogen
B. prolactin
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If a cell has the same concentration of dissolved molecules as its outside environment, the cell's condition is referred to as being
A. isotonic. B. hypertonic. C. hypotonic. D. hydrophobic. E. hydrophilic.
Female gametophytes develop specifically within what part of the flower?
A. anther B. stamen C. stigma D. ovule E. central cell
Of the primates listed below, a human’s closest extant relative is a(n)
A. South American spider monkey. B. mandrill. C. orangutan. D. ring-tailed lemur. Gather Content · What do you already know about primate relationships? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Natural selection operates directly on
a. the genotype. b. individual alleles. c. the phenotype. d. color only.