Answer the following questions.
a. How are the hereditary changes
responsible for evolution?
Answers
1.Formation of new species due to changes in specific characters of several generations of living organisms as a response to natural selection is called evolution.
2.At present, crores of species of plants and animals with huge diversity regarding shape and complexity are present on the earth.
3.Animal diversity ranges from the unicellular amoeba and paramoecium to man and giant whale.
4.The plant diversity consist of various species ranging from unicellular cholera to huge banyan tree.
5.First primitive cell may have been formed from the mixture of different types of organic and inorganic compounds.
6.There may have been some differences among these cells and according to the principle of natural selection, some may have shown good growth and some may have perished which could not adjust with surrounding.
7.Sustaining and selected organism can perform reproduction and thereby,give rise to the new species with their own specific characters.
In this way the heriditery changes are responsible for evolution.
Hope it helps!