The summer solstice is the first day of summer. This day, June 21, is the longest day of the year.
Answer is B
a eukaryote is any cell that contains a nucleus
Employee data, promotion data, and vacation data
Answer:
<em>Geographic isolation</em>
Explanation:
Geographic isolation can be described as a term that describes the model of speciation in which a biological population becomes isolated from other members of the population and can no longer have gene flow with them.
The same scenario of gene isolation is occurring in the species of taods which live at the top of the mountains in southern Arizona. This population has become reproductively isolated fro all other species of toads within the mountain range.
