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:
The answer is A
to have more available cell membrane to transfer subtances such as waste in and out of the cells
Google said hydrogen so I'm guessing B. gases
A part of the body that doesn’t contain melanin is the nails
