The one that provides long term energy and makes up the membrane surrounding the cell and its organelles

After getting the slide and microscope ready, stella is eager to see the microscopic pond water specimen! she crouches around her microscope and aligns her eye with the microscope’s eyepiece. but she's only able to see a bright white light. at this point, no specimens or cells are visible on stella's pond water slide. after taking a moment to collect her thoughts, stella realizes she can't see any lifeforms because .

What is used to keep track of the gamates and possible offsprings combination

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks