Difference between "j-curve" and "s-curve"?

Which would be the outcome in a fertilized egg if the process of meiosis did not occur? twice as many chromosomes as the parents half as many chromosomes as the parents same number of chromosomes as the parents triple the number of chromosomes as the parents?

What occurs to the cell during mitosis

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm