A: Stratification helps in accommodation of a large number and types of plants in the same area.
R: It is the occurrence of horizontal zonation in the ecosystem.

Occurrence of more than one type of leaves on the same plant is

Occurrence of more than one type of leaves on the same plant is

Occurrence of different types of leaves on the same plant is

The occurrence of more than one type of leaves on the same plant is known as

In large number of plants, pollination is carried out by insects. List four characters of flowers that helps insect pollination.

Assertion : When a large number of plants are grown at the same place for food, it is called a crop. Reason : Wheat is the most important cereal crop in the world, followed by rice and maize.

A : XO type sex determination is found in large number of insects. R : XO type sex determination is found in large number of insects.

I. The Prime Minister has visited the drought-affected areas and promised government assistance to help the farmers. II. A large number of farmers in the drought-affected areas have been suffering due to drought situation and are unable to feed their family.