List two things a scientist might ask about the movement of carbon dioxide

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 .

Name the organs of humanelemintary canal.

Consider the venn diagram of plant reproduction. where in this image, areas a - d, would you insert the picture of the orange lily?