2. (Sponge)
F F F
F F F
F F F2
1. F (Choanocyte) F F
(Flagellum) 1 F F
2. F (Amoebocyte) F F F F
F
*** F ***

4. (Hydra)
(Nematocyst) F (Tentacle)
F F F F F F F F F F
F F F F2
1. F F (Gland Cell) F F F F
F F F F F F F
(Extracellular Digestion) F F
2. FF (Digestive Cell) F F F Gland
Cell F F F F F
F Food Vacuole F F F
(Intracellular Digestion)

5. *** F ***
F
tentacle
Grand cell
Digestive cell

6. • F (planaria) F
F
2 F
• F F F
2 F F F
• F F F F F
(host)
• F F

7. Planaria

8. F (Earth Worm )
(anus)
(Esophagus )
F (intestine)
(Gizzard)
(Crop)
(Pharynx)
(Mouth) *** ***
F

9. (insect)
1. (Mouth) F
F
- F
- F
- F F
2. F (Salivary Gland) F F F F F
F F F
3. (Pharynx) F
4. (Esophagus) F
5. (Crop) F

10. (insect) ( F )
6. (Gizzard) F F
F F
7. F F F (Hepatic Caeca Digestive Caeca) F F F
F F F
8. (Stomach) F F F
F F F F F F
9. F (intestine) F F
10. F F (Colon) F
11. F (Rectum) F
12. (Anus) F F F
F

11. Gizzard intestine
Crop
rectum
Anus
Esophagus
Gastric caeca
Salivary grand Stomach