Which best explains why a bacteria is classified as a prokaryote?
a. the presence of a nucleus.
b. the absence of a nucleus.
c. the presence of a cell wall.
d. the absence of a cell wall.

Which represents the cross between parent plants if one is heterozygous for yellow-colored pods and the other is homozygous for green-colored pods? yy  ´    ´    ´    ´  yy

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation

Under the soviet system, the government a. controlled all forms of communication. b. allowed newspapers to print whatever they wanted. c. controlled editorials but not the reporting of news. d. encouraged access to a wide variety of news sources. select the best answer from the choices provided a b c d