Question

what is a negative effect of genetic drift?
the development of a new species
the movement of organisms
the loss of diversity within a population
the cause of a mass extinction

Explanation:

Genetic drift refers to random changes in allele frequencies in a population. It can lead to the loss of genetic diversity. When genetic diversity is lost, a population has fewer variations in traits. This makes the population less adaptable to environmental changes. For example, if a disease strikes, a less - diverse population may have no individuals with resistance.

• The development of a new species (speciation) is more related to processes like reproductive isolation rather than being a negative effect of genetic drift.
• The movement of organisms is called gene flow, not a negative effect of genetic drift.
• While genetic drift can have an impact on small populations, it is not typically the main cause of mass extinction. Mass extinctions are usually due to large - scale environmental catastrophes like asteroid impacts or massive volcanic eruptions.

Answer:

the loss of diversity within a population