Question

How does the creation of variations in a species promote survival?

Answer 1

Hint: The variations ensured the species' survival as they allowed the population members to adapt to the changing climate and conditions. The species are more suited for the changed atmosphere. The continuity of the species is thus preserved.

Complete Answer:
- Variation in biology refers to any differentiation between cells, individual organisms or groups of organisms of any species that is caused either by genetic variations known as genotypic variation or by the influence of environmental factors on the expression of phenotypic variation's genetic potential.
- Physical appearance can be seen in variation, metabolism, fertility, mode of reproduction, behaviour, learning and mental ability and other noticeable or measurable characters In a specific environment, all the variations in the species do not have equal chances of survival.
- The survival of the differences relies on the existence of variance. Different people have numerous shifts. The basis of evolutionary processes is the selection of variants according to environmental factors.
- Such variations may lead to increased survival benefits if people die from positive characteristic adoption or can merely contribute to genetic drift (change in the occurrence of an established gene variant in a population due to random sampling of organisms).

Note: Genetic differences are an important factor in evolution, since natural selection causes the number of alleles already present in the population to increase or decrease. It is a benefit for a population because it helps certain individuals to adapt to the environment while ensuring the population's survival and thereby encouraging the species' survival.