CBSE Class 8 Science Biology Assignment Set A

Q.A Fill in the blanks using suitable words.

1. ______ is a structural and functional unit of life.

2. Amoeba is a ________ organism.

3. _________ is a smallest cell.

4. _________ is a central yellow mass of a cell.

5. _________ is said to be a power house of a cell.

Q.B Answer the following questions in brief:

1. Which branch of biology deals with microorganism?

2. Name the bacteria that help in converting milk to curd.

3. What do you mean by Bioaugmentation?

4. Name any one biological nitrogen fixer.

Q.C Give scientific reasons for the following:

1 Virus is said to be a connecting link between living being and non living things.

2 Afforestation helps to overcome flood.

3 Overgrazing and deforestation contribute towards soil infertility.

Q.D Answer the following questions in detail with the help of diagram.

1. Differentiate between plant cell and animal cell giving four points.

Draw a well labeled diagram of a Plant cell.

Please Click on link below to download CBSE Class 8 Science Biology Assignment Set A