Insects live under rocks. Hope this helps!!
There was less of it, making it more possible for the species to be extinct.
A population that has been isolated, especially a smaller one, could have a high level of homozygosity and therefore not a lot of genetic variation. Gene flow between such populations can increase the level of heterozygosity, and therefore up genetic variation.
Answer:
Water moves through the help of living organisms in an ecosystem. ... Other nonliving processes such as evaporation, precipitation, water returns back into the atmosphere.
Explanation:
