This is easy Answer is D
Explanation
D is starting of my name and it is the lucky letter
Plants, microorganisms, and animals
C.
It is d, becuase you divide 500 by 15, and that is the closest answer
What this student is doing is collecting data. So, he wants to check how many life forms there are in the waters nearby. In order to do so, he has to take a sample, and look at it through a microscope so as to determine the number. So, he collected a sample which is his data. He is not drawing conclusions yet, but rather counting these organisms. He is not making a peer review - his peers aren't even mentioned here. He is not forming a hypothesis because he is just counting at this point.
