Filtration occurs in the region labeled
a. 1.
b. 2.
c. 3.
d. 4.
e. as none of these
A
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Sexual selection favors
A. large males. B. ornamentation such as bright feathers in male birds. C. traits that reduce an individual's survivorship. D. traits that increase an individual's access to reproductive opportunities E. All of these.
The steady state so vital to life is possible because
A) the cell cannot convert energy from one form to another. B) all cells are autotrophic. C) the cell continually takes up energy from the environment. D) all reactions are at equilibrium. E) all reactions are exothermic.
Members of the genus Micrococcus are frequently pigmented and may grow in yellow, red, or orange colonies.
Answer the following statement true (T) or false (F)
A cell is exposed to a substance that prevents it from dividing. The cell becomes larger and larger. This situation
A) should present no problem to the cell, since it can continue to perform all other necessary functions. B) should present no problem to the cell, because the surface area of the cell will increase as the volume of the cell increases. C) will eventually be problematic, since the cell's ability to absorb nutrients through its outer membrane will not increase as quickly as its cytoplasmic needs. D) should be beneficial, since the cell will be able to divert the ATP normally used for cell division to other processes.