Answer:
A. A change in the gene pool over time
Explanation:
The evolution is the change in the gene pool over time. Therefore, the option (A) is the correct answer.
Decomposers break down the remains of dead plants and animals and take the nutrients and energy and give it back to the earth when they die.
Hypertonic solution, such as increased salt (NaCl) from diet, or from hyperglycemia as in uncontrolled diabetes.
