Answer;
-Gene flow
Explanation;
Microevolution is the changes within a gene pool occurring from generation to generation. Allele frequencies in a population may change due to gene flow, genetic drift, natural selection and mutation.
Gene flow refers to changes in allele frequency that result from migration of individuals between populations. Gene flow has the effect of minimizing the genetic differences between populations.
Answer:
A lot of times it depends on the teacher. Ours didn't count but other teachers did count.
A. 1 year
it is because it completes one full revolution in 365 days and 6 hours and it is equals to 1 year
Answer:
Hunting by the early humans is the appropriate answer.
Explanation:
A set of huge animals, which thrived on Earth at the time of the Pleistocene epoch is known as the Pleistocene megafauna. These species got extinct during the Quaternary event of extinction. There are four theories, which have been considered as the probable causes of the extinction of Pleistocene megafauna. These are change in climatic conditions, hunting by humans, impact from a comet or an asteroid, and spreading disease. However, the majority of the evidence indicates that humans were the prime cause for the extinction to take place.