The magnetic field of a bar magnet is the strongest at either pole of the magnet. It is equally strong at the North Pole when compared with the south pole. So I would say the answer is A.
<span>the part of science that deals with microorganisms</span>
Answer:
<em><u>The nucleotides are bonded together via hydrogen bonds making it easy for the dna to be split in half and replicated</u></em>
Answer: No
Explanation: It is beneficial if the animals that are disadvantageous doesn't reproduce so it doesn't discredit natural selection. The traits in which variation is occured are more suitable for organism to live and reproduce in the environment are preserved and are passed from generation to generation.
However, natural selection effects limited number of progeny.