Mutations are not always unfavorable, they are often "indifferent" as to the survival of the cells or the individual.
Mutations are the primary source of variation in the genetic material underlying the evolution of living things. They can have a beneficial effect for the species.
<span>the situation that allows for evolution during gene duplication is : B. a mutation occures in one copy of the original gene
For example, its predicted that all organisms came from a single cell organism.
But over hundreds of million of years, we undergone several mutation over and over again to the point where human became the most intelligent organism on earth</span>
phytoplankton falls on the first trophic level which is are "primary producers", it is because even smallest to smallest creatures like zooplankton feed on phytoplankton.