Malaria is caused by Plasmodium falciparum, a non-motile protist that contains a cluster of microtubules at one end of the cell. Once injected into the bloodstream, these microtubules are used to attach to red blood cells. Plasmodium falciparum is which of the following?
A. a protozoan
B. an alga
C. a slime mold
D. a diatom
E. an apicomplexan
Answer: E. an apicomplexan
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Red algae yield which of these commercial
products? a. carrageenan b. nori wrappers for sushi c. algin d. agar e. all EXCEPT algin
Which of the following is an example of codominance?
A) in roan cattle, you can see a mix or both red and white furs B) there are many possible mutations that lead to white eyes in flies C) flowers of a certain plant can come in purple, blue, or yellow D) a scorpion's venom is more potent when it's younger E) a certain plant can have jagged, rough, or smooth edges on its leaves
Which sample statistic is going to dictate the center of a confidence interval for the population mean?
A. Sample standard deviation B. Sample mean C. Number of observations D. Sample range
Which of the following statements is not true about growth hormone?
A. The quantity of growth hormone is greatest during childhood and adolescence. B. Growth hormone can be administered as a medical treatment for stature problems. C. Too little growth hormone results in dwarfism. D. Too much growth hormone results in gigantism. E. Growth hormone is produced by the posterior pituitary.