Light waves or gravitational waves sorry if not correct
Answer:
on the outer surface of the red blood cell membrane
<span>There needs to be an independent variable, a dependent variable, a constant, and a control group. The independent variable is the part that is manipulated. The dependent variable is affected by the independent variable. The constant is the part kept the same throughout all of the experiments. The control group is the normal group that is untreated.</span>
Answer: B
Explanation: you want your soil to hold water like a sponge.
They channgebbecause they have to adapt to their environment get use to seeing other people