Semipermeable means only certain substances can pass through. I imagine you are talking about cell membranes which are semipermeable. This means vital things like oxygen and nutrients are able to pass through the membrane, while not allowing everything to enter the cell
C is the answer.We are using to classify organisms beyond molecular setting not by the physical structure.note-applicable for this question only
Answer:
2nd one is the most realistic of what occurs in ecosyystems
