I believe it's "C. When glucose levels are low and lactose is present" I may be wrong.
The endosymbiosis explains how eukaryotic cells may have evolved from prokaryotic cells.
Answer:
B
Mutation is the ultimate source of genetic variation, but mechanisms such as sexual reproduction and genetic drift contribute to it as well Because prokaryotes are haploid, such a mutation immediately become part of the genetic makeup of the cell unlike eukaryotic diploids where a normal second copy of the gene usually protects the cell from the potentially lethal effect of such a mutation.
Answer:
alle and the daphina cell