<span>The answer to your question is false</span>
B.4 When the diameter doubles the volume eight times and the surface four times would be increased so that's why the answer is 4
Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).
People used vaccines to reduce the risk of infection by working with body as defenses to help them so this vaccines develop immunity to disease
I hope that's help:0
The answer is B since you have to be able to prove/elaborate on the topic sentence
