Which species has the smallest population? nori mussel acorn barnacle starfish?

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 .

Differentiation of cells changes the nucleic information. true false

How does friction with the atmosphere affect the speed of an artificial satellite