Answer the question using the accompanying figure. In the figure, letter A represents a ____ taxon, which includes ____
a. polyphyletic; species from different evolutionary lineages
b. polyphyletic; an ancestral species and all of its descendants
c. paraphyletic; an ancestral species and only some of its descendants
d. monophyletic; species from different evolutionary lineages
e. monophyletic; an ancestral species and all of its descendants
ANSWER: e
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Nematodes and arthropods both _____
A) develop an anus from the blastopore (pore) formed in the gastrula stage B) are suspension feeders C) grow by shedding their exoskeleton D) are lophotrochozoans E) have ciliated larvae
One example of infectious disease transmittion by a fomite is
A. a baby born with congenital syphilis from an infected mother. B. a teenager with severe acne due to propionibacteria growing in sebaceous glands. C. a child developing a cold after playing with a toy that harbored rhinovirus. D. None of the choices are correct.
The normal or set point for blood pressure can increase as a result of continued increases in blood pressure. The body no longer recognizes the elevation as abnormal and no attempt is made to return to the lower set point. The result is the maintenance of an elevated blood pressure that can have harmful effects on the body. Medication can lower blood pressure and lower the set point in the system to a more healthy level. This is an example of which of the following mechanisms?
a. set point saturation b. organism maturation c. acclimatization d. phenomenalization
Four of the five answers listed below are related by a common feature. Select the exception
a. A b. B c. AB d. Rh+ e. O