Because natural selection can only increase or decrease frequency of alleles that already exist in the population
They are genetically identical because when the cell splits into the daughter cells, it makes an exact copy of DNA chromosomes, forcing the cells to be identical.
Answer:
The most obvious result of the removal of the top predators in an ecosystem is a population explosion in the prey species. ... When prey becomes more scarce, the predator population declines until prey is again more abundant. Therefore, the two balance each other. When the predators are removed, prey populations explode.
Answer:
Protists
Explanation:
Animal like protists which we called protozoans are eukaryotic, unicellular, heterotrophic organisms without cell wall found in aquatic environment.
I think that the answer is true