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) progesterone B) oxytocin C) estrogen D) prolactin
Answer: B
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Which of the following has the greatest effect on the rate of chemical cycling in an ecosystem?
A) the ecosystem's rate of primary production B) the production efficiency of the ecosystem's consumers C) the rate of decomposition in the ecosystem D) the trophic efficiency of the ecosystem E) the location of the nutrient reservoirs in the ecosystem
An individual who is a carrier of a genetically inherited disease ____
a. has the disease, and all of their offspring will have the disease b. does not have the disease but must have a parent with the disease c. does not have the disease but may have offspring with the disease d. has the disease and must have a parent with the disease e. does not have the disease but must have a parent with the disease and may have offspring with the disease
For which of the following is there fossil evidence of 100 extinct species from five continents, with
only one extant species?
a. humans b. birds c. marine mammals d. insects e. horses
Which of the following is an extreme allergic response?
a. Autoimmunity b. Asthma c. Cancer d. Anaphylactic shock