Answer:
genetic drift
Explanation:
Genetic drift is an evolutionary force that requires the presence of a small population. It is a random process that fixes one or other alleles randomly in the gene pool of a population. Genetic drift does not take account of survival fitness imparted by alleles to the individuals. Since random and chance events such as the death of all the individuals having a certain allele in a population affect the small population more intensely, genetic drift works on small populations only.
Basalt is the usually hard and black volcanic rock formed from (liquid) balsalitc lava
Answer:
multicellular; single celled organisms are often too tiny to be seen without a microscope
That’s very simple uranium I believe but I haven’t done science class in like 7 years so don’t quote if I’m wrong