1. What is the basic unit of life in the body of a living organism? Fill in the blank: The basic unit of life is a _______.

2. Fill in the blank: A group of similar cells forms a type of _______.

3. Fill in the blank: Different tissues are organised to form an _______.

4. Fill in the blank: Several organs work together to form an _______ that performs a major function of the body.

5. Fill in the blank: All the organ systems together make up a complete _______.

6. What do you call living beings made up of many cells? Fill in the blank: Such living beings are called _______.

7. What is the largest known cell in the living world?

8. What are such organisms called?

9. What Are Microorganisms? Some microorganisms, like bacteria and Amoeba, are made of just one cell (unicellular). Others, like some fungi and algae, have many cells (multicellular). Which of the following is unicellular?

10. To observe the cells of a microorganism, what instrument do scientists use to magnify their size and make them visible?