Gene flow is the phenomenon of transfer of gene from one species/population to others. According to Natural Selection, more suitable (which fits best with the environment) gene/allele make the characteristic of that individual. So, it increases the ability to survive and reproduction
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Dry hands and peeling skin
Answer:active transport
During active transport, ATP is required to move a substance across a membrane, often with the help of protein carriers, and usually against its concentration gradient. One of the most common types of active transport involves proteins that serve as pumps.
Answer:
the tropics have more species because of the more humid enviroments because not many warm blooded animals can live near the poles. because of the abnormally cold temperatures, not many animals can survive unlike in tropical areas where there is a more vaste amounts of food and plant species, also shelter.