LIFE SCIENCE

Detailed explanation-1: -Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success. This process causes species to change and diverge over time. Natural selection is one of the ways to account for the millions of species that have lived on Earth.

Detailed explanation-2: -Evolution is a process that results in changes in the genetic material of a population over time. Evolution reflects the adaptations of organisms to their changing environments and can result in altered genes, novel traits, and new species.

Detailed explanation-3: -Genetic variation is the presence of differences in sequences of genes between individual organisms of a species. It enables natural selection, one of the primary forces driving the evolution of life.

Detailed explanation-4: -the species can adapt to new environments due to variation, which gives them a survival advantage. a disease or change in environment is less likely to affect all the individuals in a population.

Detailed explanation-5: -The small changes that occur during the long periods make the organisms competent to live in a particular environment. Mutation or variation of the genetic material can never occur fast. It takes time for the organisms to change according to the environment which makes these changes necessary but slow.