How does variation help in the survival of the species over time? . Explain with an example.
Answers
Answer:
variations which are favourable increase the chances of survival of the species. it from the basis of evolution
Variation help in the survival of the species over time
↪ Population of organisms live in well defined places or niches.
↪ They are native to that area.
↪ Reproduction involves DNA replication which can generates errors that is the main source of variation.
↪ This consistency of DNA is responsible for the maintainence of body design.
↪ Suppose the temperature in that region increases or decreases, water level changes or there is a meteorite hit, the population may get wiped out.
↪ But if there are some organism that can tolerate the heat, they would survive.
↪ They would further reproduce and survive in nature.
↪ For eg. (i) Bacteria are one of the oldest surviving organism.
Due to variations in their body designs, they adapt most of the inhospitable, climates like desert, ice etc.