Your answer is D lives in the same region as others closely related species. Because it wouldn't be C cause that's not isolation it would be B cause there not plants and its not A because it is reproductive but its not isolation.
The digestive enzymes can only recognize the structure of the substrate but can not recognize whether it is inside cell or from outside. So if there is no membrane, the enzyme will digest the structure of its own.
Answer:
Electricity is a secondary energy source that we get from the conversion of other sources of energy such as coal, natural gas, oil, nuclear power, and so on. These sources are known as “primary sources.” Primary sources can be renewable or non-renewable, but the electricity itself is neither.
Explanation:
thank me later
B- respiration or A- transport
I think the answer is organisms
