Why echinoderms differ from all invertebrates

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 .

Compare and contrast region e in the illustration above with region d. describe the physical characteristics of each region.

Why would a drug the damages capsids treat a viral infection