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Digestion in lower animals is _____ which involves food particles directly the cell (13) 4. This lower animal catches food with its tentacles. (5) 6....


1. Digestion in lower animals is _____ which involves food particles directly the cell (13)
4. This lower animal catches food with its tentacles. (5)
6. Process of removal of waste material from the body. (9)
7. Enzymes secreted by gastric gland in the stomach (6)
10. Small openings from the surface of leave that helps in diffusion of gases (7)
11. A product secreted by plants and used for making varnishes. (5)
15. In animals and humans having well developed organ systems digestion is said to be of this type (13)
18. Fish use these organs for respirations. (5)
19. Respiration takes places through these organs in mammals (5)
20. Enzyme present in pancreatic juice. (7)
21. The _______ consists of a stoma surrounded by two guard cells and other neighboring cells. (8, 9)
food with its tentacles. (5)
1. First step in food intake. (9)
2. Digestive juice found in mouth. (6)
3. Process of intake of oxygen and release of Carbon di-oxide (9)
5. The process of food intake in most insects. (7)
7. Lowest form of animals. (8)
8. A large space in older plant cells that contains excretory products, sometimes for life. (7)
9. The process of energy release in human bodies is called ____________. (11)
12. Enzyme present in intestinal glands. (7)
13. Enzyme present in salivary glands. (7)
14. Process of breaking down complex food materials to simple ones. (9)
16. Catalytic organic compounds that help in digestion (7).
17. Opening at the end of large intestine through which undigested material is expelled. (4)

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