<span>The mechanism that affected the gene pool of the immigrants that entered the United States through Ellis Island from 1892 to 1954 is B. gene flow. Gene flow is the transfer of genes or alleles from one population to another. The migration of millions of individuals from countries across the Atlantic Ocean to the United States is responsible for the changes in the gene pool of the immigrants.</span>
Answer:
The majority of the cell membrane is made from phospholipids and has 2 layers
So abiotic means nonliving, so the only abiotic option is B. the gravel on the bottom of the aquarium.
Answer: It translated ''Nobar story summary'' for me
Explanation:...
