Tissues — Science STD 9 — Question

The cell wall of meristematic cell is made of:

1. Protein
2. Amino acid
3. Peptidoglycan
4. Cellulose

The smallest known cell is:

Layers continue to produce eggs upto:

1. 350 days
2. 425 days
3. 500 days
4. 600 days

Animal husbandry is the scientific management of:

1. Animal breeding.
2. Culture of animals.
3. Animal livestock.
4. Rearing of animals.

1. (i), (ii) and (iii)
2. (ii), (iii) and (iv)
3. (i), (ii) and (iv)
4. (i), (iii) and (iv)

The growing of ____ crops on a piece of land in a pre-planned succession is known as crop rotation:

The jelly like substance present in the cell is called as:

Which one of the following is the fastest growing carp?

1. Rohu
2. Catla
3. Mrigal
4. Singhara

A cell is the ______ and functional unit of an organism.

Which of the following is a component of plant cell wall?

Which of the following is not a type of WBC: