Question

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Answer 1

36) Genetic Drift and Restricted gene flow – The genetic drift is something that is often seen and observed in the smaller population. It is change in the frequency of the genotype and hence it tends to even cause random sampling of organism. The gene flow is quite restricted and within that particular population and hence the genetic diversity is very less.

37) Population

The process of evolution takes place due the change in the genes or gene sequence over the time that cause change in both genotypic and phenotypic characteristics. It tends to change a population by acting on the individual level through phenotypic changes

38) The global human population has exhibited Logistic growth since 1000A D – In this the population growth increases and the per capita growth rate tends to get smaller. The population size now face limited resources in the environment as the carrying capacity does not change and population increase

39) Extinct – The grizzly bear from California has gone extinct as they have been tracked down and hunted. It was because it was a powerful carnivore in the low mountains and it became a threat to the people