I believe it is B. Hope this helps!!
The correct answer is D. The theory of natural selection provided a better explanation of the processes that were being observed by the scientists.They observed that the related species birds found on one island were slightly different from that of the other, and certain portions earth, have the species, which were not found anywhere else.
Answer:
Diffusion
Explanation:
Diffusion has a membrane which allows even large molecules to pass through it whereas osmosis allows only water molecules as it has a partially permeable membrane.
Answer:
C; Oxygen concentration
Explanation:
Oxygen is product, not a reactant in photosynthesis. Light and carbon dioxide are reactants, and extreme temperatures can denature the plant.