1. Enzymes are chemically ?

2. Which one of the following is nonrenewable resource ?

3. “It is the outmost layer of the animal cell, it is thin, delicate, elastic, and capable of self repair.” The statement is true for ?

4. The accumulation of CO2 in large quantities in the atmosphere causes the problem of ?

5. Biotechnology refers to ?

6. The ovary in plants matures into ?

7. The amino acids which cannot be synthesized by the mammals are called ?

8. Economically important Genetic traits in plants are influenced by the environment because these are ?

9. Only plant cells contains ?

10. Quantitative traits are measurable traits that show ?

11. The process of programmed cell death is called ?

12. Genetic material of an organism changes with ?

13. A plant disease caused by bacteria is called ?

14. Genes determine ?

15. The first step in Photosynthesis is ?