Maria is pregnant and a week past her due date, and her doctor decides to induce labor. Her physician will use pitocin, which is a synthetic form of which natural hormone?
A) estrogen
B) progesterone
C) oxytocin
D) prolactin
C
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A millicurie, a unit of radioactivity, is
(a) a tenth of a curie. (b) a hundredth of a curie. (c) a thousandth of a curie. (d) a millionth of a curie.
How is active immunity different from passive immunity?
a. Active immunity is slower in onset and shorter-lived. b. Active immunity is slower in onset and longer-lived. c. Active immunity is faster in onset and shorter-lived. d. Active immunity is faster in onset and longer-lived. e. Only active immunity involves antibodies.
Why is the total biomass of secondary consumers normally less than that of primary consumers?
What will be an ideal response?
A young scientist has discovered a new species of grub worm in the Amazon. He would like to explore the possibility that in this grub worm the codon CUC is the start codon and codes for methionine, not leucine as it does in other worms. To date, he has been unable to get his research funded, most likely because
A) worms have been extensively studied and their genomes are simple. B) worms do not contain homologous genes to humans. C) codons are generally the same in all worms. D) the genetic code is universal to all species. E) worms are difficult to maintain in the laboratory.