During the process of diffusion, solutes move ________ their concentration gradient.
a. down
b. up
c. across
d. the solutes do not move during diffusion
a. down
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During fertilization, the acrosomal contents _____
A) block polyspermy B) help propel more sperm toward the egg C) digest the protective jelly coat on the surface of the egg D) nourish the mitochondria of the sperm E) trigger the completion of meiosis by the sperm
what type of exotoxin causes gastroenteritis in patients infected with E.coli?
What will be an ideal response?
In pea plants, round peas are dominant (R) and shriveled peas are recessive (r), and yellow peas (shown as light gray in the Punnett square) are dominant (Y) and green peas (dark gray) are recessive (y). Using this information and the partial Punnett
square shown, what genotype should be listed in the square labeled A? A) RRYY B) RrYy C) rrYy D) RRyy
During unfavorable growth conditions, many protozoa can convert to a resistant, dormant stage called a ________.
Fill in the blank(s) with the appropriate word(s).