When the continents are at the Earths poles, they receive less sunlight.
<span>Conjugation in which two cells temporarily combine in order to transfer genetic materials. After combination they then divide again, allowing of the information to pass and replace the previous members of the population.</span>
Answer:
Population
Explanation:
population is a group of organisms of the same species who inhabit the same particular geographical area
Flu vaccines need to be revised and changed every year because the flu virus constantly mutates. Flu viruses can change in two ways: drift or shift. Antigenic drift occurs when genes of the virus slowly change during replication until the immune system no longer recognizes it. On the other hand, antigenic shift occurs when a major change in the virus happens. This usually leads to a totally different kind of virus. This is what happened during the H1N1 scare in 2009.
DNA viruses like mumps are less prone to mutation due to the presence of DNA polymerase. RNA viruses are more prone to mutation because they undergo reverse transcription to simulate the role of DNA.
DNA is the correct answer.
Hope it helps!
