What is a type of weathering where rock is dissolved by an acid ?

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

Can bacteria reproduce in a way such that when you start out with two bacteria, you get five bacteria? why or why not? * a. yes, because bacteria reproduce sexually, and can produce any number of offspring, just as humans do. b. no, because bacteria grow at an exponential rate. c. no, because when bacteria reproduce, they split into two parts, and two bacteria splitting would result in four bacteria.

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?