Typically, humans cause cultural eutrophication by
the
amount of nitrogen and/or
phosphorous in an ecosystem.
A. increasing
B. marginalizing
C. decreasing
D. neutralizing

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 .

Ais a group of individuals of the same that exist together in the same place at the same time

Por qué crees que los huevos con cáscara se llaman amnióticos?