Answer:
D. Longshore currents
Explanation:
Longshore currents are characterized as the sediment transport that occurs in the surf zone, due to the oblique incidence of the waves, along the beach. A current develops between the beach and the surf zone parallel to the coast, normally between 0.3 and 1 m / s. It is this process that is responsible for accumulating and removing sand that results in displacement of barrier islands.
There's mRNA (messenger RNA) which sends messages from DNA to chosen places. (I think of this as a mail carrier and all the mail is from DNA.) There is tRNA (transfer RNA)which moves amino acids to chosen places. (I think of this as a driver of a bus and all of the people that board it are amino acids.) There is also rNA (ribonucleic RNA) which is a RNA component of the ribosome. Hoped I helped!
Answer:
Explanation:
(1) No change in the DNA sequence, (2) No migration, (3) A very large population size, (4) Random mating, and (5) No natural selection.
Answer: alleles
Explanation:
Alleles are different forms of a given gene. Alleles are mutated forms of a given gene which controls a particular trait. For instance, the gene that codes for hemoglobin is denoted with the letter A but the gene has another variant denoted by S. In abnormal hemoglobin S (sickle hemoglobin), glutamate is replaced by valine at position 6 in the amino acid sequence of the two beta chains of hemoglobin. This change in the amino acid sequence causes the red blood cells to have a sickle shape resulting in sickle cell disease. Therefore hemoglobin A and S are alleles of a given gene.