A somatic cell is:
a. a body cell that is responsible for growth and maintenance.
b. a cell specialized for reproduction.
c. one of the cells producing spores in slime mold fruiting bodies.
d. has four membranes around it.
A
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In sea urchins, the "fast block" and the longer lasting "slow block" to polyspermy, respectively, are _____
A) the acrosomal reaction and the formation of egg white B) the cortical reaction and the formation of yolk protein C) the jelly coat of the egg and the vitelline membrane D) membrane depolarization and the cortical reaction E) inactivation of the sperm acrosome
Microevolution is the term given to evolutionary changes that produce new species and groups of species
Indicate whether the statement is true or false
Reproductive isolating mechanisms typically evolve after gene flow __________. Fill in the blank(s) with the appropriate word(s)
The word “hormone” comes from the Greek word
meaning a. target. b. response. c. secretion. d. set in motion. e. internal gland.