Answer:
option d is correct. the existence of land bridges between continents.
Explanation:
landland bridge theory which was used to explain why species would end up continents over, such as mammoth travelling to North America, thisthis theory was based on the idea that water eventually Rose to cover these bridges rather than the at having individual plates that moved away from each other.
<span>quartile values..................</span>
Answer:
their nuclear material is naked not membrane bound
Answer:
Suppose:
a given gene undergoes a mutation to its dominant allele such that two out of 100,000 offspring exhibit the new mutant phenotype.
Assuming that these two offspring are heterozygous,
Mutation rate for the gene = 1/100,000
