A) Chromosomes pair in step 2.
B) Chromatids separate in step 5.
C) Chromosomes are replicated in step 1.
D) Chromosomes exchange genetic material in step 3.

In which of the following ways is the function of the surface of a microsphere similar to the function of an actual cell membrane? a.both make it possible for the conditions in the interior to be different from the conditions outside. b.both provide a barrier that keeps water from flowing across it so the interior remains dry. c.both separate the rna that forms in the interior from any rna that might form in the environment. d.both can actively move molecules into the interior or out into the surrounding environment.

The buildup of sediments where a river empties into a slow-moving or nonmoving body of water is known as a/an

Which of the following can be reduced by the use of renewable energy sources? a. social costs b. economic costs c. environmental costs d. all of the above select the best answer from the choices provided a b c d