In addition to their circular chromosome bacteria also have smaller rings of dna called
a. rna.
b. genes.
c. cells.
d. plasmids.

Which mantle is under the crust the upper mantle or the lower mantle i think it's upper let me know if i'm right

What are the most explosive events that occur on the sun? umbras solar flares solar winds prominences

How can active reading strategies you? o a. they can you get into better physical shape. o b. they can you read fewer science articles. o c. they can you understand what you read. o d. they can you avoid reading altogether.