Answer:
Hydrogen ions
Explanation: pH is the concentration of hydrogen ions (H+) in a given solution. A pH of 1 means there are a lot of hydrogen ions and a pH of 14 means there is a very small concentration if them.
is c I think, I'm not sure tho!
Answer:
it is important for inheritance, and for genetic instruction for your body.
Explanation:
The correct answer is descent with modification.
Answer:
There are three basic types of freshwater ecosystems:
Lentic: slow moving water, including pools, ponds, and lakes.
Lotic: faster moving water, for example streams and rivers.
Wetlands: areas where the soil is saturated or inundated for at least part of the time.
