I’m sure it is D I just took the test
Answer:
What causes genetic variation?
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).
Explanation:
PLZ mark brainliest also I hope this helps
Hadean is the first eon of precambrian, and took place around 4.6 and 4.0 billion years ago.
A chemical bond to form in a chemical compound must be formed by two or more atoms attracted to one another.
