Phytoplankton have many adaptations that allow them to float. which of the following is not one of these adaptations? (2 points)
select one:
a. phytoplankton cells have large cavity in the center
b. phytoplankton have spines
c. phytoplankton can reduce its surface area
d. phytoplankton have stores of oil and fat

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 .

Kelly ran electricity though a sample of water using electrolysis. the water changed into two gases, x and y. it was not possible to break down the gases x and y into simpler particles.

Environmental science are unconsidered with methods to preserve natural resourcesa. trueb. false