Question

Which of the following is not an example of extrinsic factor ? * 1 point a)Unbalanced diet b) Disease caused by microorganisms c)Genetic disorder d)Narcotic drugs​

Answer 1

Answer:

Extrinsic factors are those factors like light, water, temperature, availability of gases is the abiotic or environmental factors that control the growth of a plant. These are not controlled by the plant.

Intrinsic factors like growth regulators are released by the plant and are in direct control under the plant. They regulate process like cell differentiation, cell division etc.

So, the correct option is 'Phytohormones'.