Discuss the role of variations in evolution.

What is variation ? Name the basic process that cause variations among organisms. Discuss the role of migration in evolution

Define evolution.

Discuss the role of microbes in the production of household products.

What are auxins?Discuss the role of auxins in the growth of plants.

Define conductivity and molar conductivity for the solution of an electrolyte. Discuss their variation with concentration.

What are fossils? Discuss the implication of fossils in evolution.