The diagram below illustrates substances crossing the selectively permeable membrane of different cells. Each example, A-F, shows not only different substances, but also different concentrations. Take note of the concentration inside the cell compared to the concentration outside of the cell and the direction of movement of the substance. Figure 3-1

Diagram A in Figure 3-1 is an example of .
a.
diffusion
c.
osmosis
b.
active transport
d.
equilibrium

Please select the best answer from the choices provided

A
B
C
D

answer: b: experiments that showed that all cells are similar in how they metabolize and in their composition

explanation:

the answer is "a.) well–developed vascular system."

explanation:

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg 

the answer would be d : p