Explain the role of factors in growth of plants and animals.

Explain the role of microbes in nitrogen fixation.

Internal factor of plant growth is

Mention three role of Auxin hormone in the growth of plants.

Write the role of centrosome in cell division in animals.

Explain the role of mitosis in compensation and regeneration.

Explain the role of tapetum in the formation pollen-grain wall.

What is growth ? What are the phases of growth ? Mention the factors of growths. Distinguish between growth of plant and animal.

Which of the following factors affect a plant not an animal?

Write in brief about the role of light, water and hormone in the growth of plants.

Plant growth is