<u>L</u><u>ipids</u>
Explanation:
The principal components of the plasma membrane are lipids
energy generated in ways that do not deplete natural resources or harm the environment, especially by avoiding the use of fossil fuels and nuclear power.
Population and nutrients, This is because if you have a large population then you must need a certain amount of nutrients to suit the population
The answer is: c because the rate that these consumers convert the chemical energy to their food into their own biomass
