It has been rumored that Olympic athletes living at the Olympic Village have lots of sex with each other. What is one possible explanation for this behavior?

Which of the following human activities resulted in the growth of the north american deer population?

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population.b) the separated population is small, and genetic drift occurs.c) the isolated population is exposed to different selection pressures than the ancestral population.d) different mutations begin to distinguish the gene pools of the separated populations.e) gene flow between the two populations is extensive.

Anormal strand of dna is shown below, followed by the same strand of dna after mutations have occurred.