The Fundamental Unit of Life — Science STD 9 — Question

Name the nucleic acids that are present in an animal cell.

1. Increased production and storage of food grains.
2. Easy access of people to the food grain.
3. People should have money to purchase the grains.
4. All of the above.

What is basis of classification?

Define intercropping.

Name two modes of transmission of AIDS.

Give an example of biological weed control.