Molecules naturally spread from areas of concentration to areas concentration through a process called

a) high; low; diffusion
b)low; high; diffusion
c)high; low; active transport
d)low; high; passive transport

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 .

In which case would a scientist choose to use a dissecting microscope rather than a compound microscope

Why is the theory of evolution important? it disproves all other theories about how life began. it provides a topic for debate. it is a unifying concept in biology. it explains how life began. i know for sure, it is not "it is a unifying concept in biology."