<u>Answer</u>: C. Population size
The students are trying to simulate the effects on a food resource which different population sizes may have. Each number of students per week represent different population sizes.
The correct answer is A.
Animal cells do not have a cell wall.
A cell wall is the rigid, outermost covering of plant cells and is made up of cellulose. It is absent in animal cells. The cell wall is visible under a light microscope.
Animal cells are instead covered by a cell membrane. It is made up of lipids, proteins, and small amounts carbohydrates. It is a thin and delicate structure that can only be seen using an electron microscope.
"By definition, ultraviolet light<span> is 'beyond violet </span>light<span>' and the visible spectrum that </span>can <span>be detected by the human eye. It cannot, therefore, </span>be seen<span> directly. Detectors that are sensitive to </span>UV<span> convert it into a form that we </span>can see<span>. ... In this scenario, however, </span>UV light<span> is being emitted, not received" found this on google hope it is helpful. </span>
A c a b d d (don’t mind dis part)
I think either rapid of human population growth or global warming