why is the variation beneficial to the species but not necessarily for the individual
Answers
Explanation:
Species occupy well-defined
spaces in the ecosystem, called
niches, by increasing their
population through reproduction.
These niches in the ecosystem
may change upon time, even
drastically, which are not in
control of these organisms
OCCupying the space. The
changes, such as an increase in
temperature, may cause a threat
to the survival of the species in
that niche. If the species have
variations within the population,
some of the variants might be
able to cope with the change,
thus having a survival advantage
Thus, these variants will survive,
leaving behind the individuals in
the population with no desirable
variation. Thus, these variants
help in the survival of species.
leaving behind the individuals in
the population with no desirable
variation. Thus, these variants
help in the survival of species.
But, not all variations are
beneficial for individual
organisms.
Answer:
Organisms are normally adapted to live in a particular kind of niche. In case of alteration in the ecological condition of that niche, the organism would not be able to survive. Only the variants of the organisms resistant to changes would survive and grow further. Thus, variation is beneficial but not necessarily for the individual.