The answer is the nervous system.
Reproductive isolation is due to geographical isolation like mountain river etc in reproductive isolation there is no flow of genes from one population to another
Therefore REPRODUCTIVE ISOLATION leads to {SPECIATION }
Hello There! ^_^
Your question: Which of these is NOT a way that large molecules, like glucose, can enter a cell..?
Your answer: Diffusion through the cell membrane is not a way that the large molecules, like glucose, can enter a cell.
The answer is option A.
Happy Studying! =)