Chapter 1 & 2

1. Organisms which derives it’s nutrition from ‘The Host’
3. Organisms that prepare their own food
7. Animals which eat both plants and other animals
8. Two organisms live in a close association and develop a relationship that is beneficial to both
12. Muscular organ attached to the floor of Buccal cavity
13. Animals which eat other animals only
14. Teeth used for grinding food
17. White and strong protective material
19. Plants which feed on insects
20. Important components of food for obtaining nutrition

1. the process through which plants prepare their own food
2. Organisms which cannot prepare their own food
4. animals which eat plants only
5. The process of obtaining and utilising food by an organism
6. Act of getting and eating food
9. Tiny pores that are present on the surface of leaves
10. The green colour pigment which helps the leaves to prepare food and capture solar energy
11. Process of elimination of undigested food from alimentary canal
15. Tubes that run throughout the root, the stem, the branches and the leaves
16. Process of breakdown of complex molecules into simple soluble ones
18. Teeth used for tearing of food