Answer:
Some strengths of the cell membrane would be being able to have control in what comes in and out of the cell. The cell membrane is semi-permeable meaning only certain things can come into the cell. In active transport, the membrane gives proteins to passing substances.
The answer is A. nucleotides
The factors then being considered in a person or a population's ecological footprint would be the food consumption, energy usage, transportation usage and the amount of waste like if it has been recycled then. Hope these are the answers and would be of help then.
Answer:
Enzymes are made up of amino acids which are linked together by peptide bonds in a linear chain
