Scientists who study human evolution are called:a
anthropologists.
b. human ecologists.
c. anthroecologists.
d. paleoanthropologists.
e. paleontologists
D
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Epidemiologists at the CDC in Atlanta, GA, have called you in to investigate an increased incidence of leukemia in a remote region of Africa. Shortly after you arrive, an RNA virus was isolated from patients and found to induce leukemia in mice
At this point, you don't know the viral gene product or the mechanism that causes development of leukemia. One of your lab assistants has isolated a variant of the virus that is missing 20% of the genome of the original virus and does not induce leukemia in mice. a) How would you determine which portion of the genome is associated with the development of leukemia? b) How would you determine the viral product or mechanism associated with the development of leukemia? What will be an ideal response?
An increased incidence of anal cancer is observed in patients who have:
a) syphilis b) Human Papilloma Virus (HPV) c) gonorrhea d) Epstein Bar
A community ecologist might study:
A) all the members of a single species that live together in a single geographic area. B) the behavior of a species in its natural environment. C) the rates of increase or decrease in the population size of individual species in different environments. D) the interactions among species living in a single area.
Osteocytes are bone cells. Collagen fibers and calcium salts are found in abundance between and among the osteocytes. The collagen and calcium salts are _____
A) components of the plasma membrane of osteocytes B) part of the extracellular matrix C) extensions of the endoplasmic reticulum D) deposited by the circulatory system but not associated with the osteocytes