In your own words explain how the structure of the cell membrane determines what can and cannot pass through the cell membrane.

Explanation:

Because the cell membrane is a selectively permeable membrane it decides what it will allow to pass through the membrane wall and what will not

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 

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?