Which term refers to the structure that forms the surface of a cell separating its contents from the outside world

Biomass can be used to generate electricity. biomass relies heavily on agricultural crops. plants release carbon dioxide and water in combustion. plants use photosynthesis to originally generate the energy that is needed. the chemical energy of these plants all started with what energy source?

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?

Is becoming less expensive to screen blood samples for dna certain diseases have genetic basis what is possible ethical concern about the availability of inexpensive dna testing