Question

1. List and explain in one sentence each, the various processes involved in nutrition in animals.
10. The function of the villi is to hold
absorbed by the walls of the intestine. True or false?
SHORT ANSWER QUESTIONS: Answer in a sentence or two.
1. How does a frog catch its prev?
2. How does a spider digest its food?
3. Name the organs that make up the human alimentary canal
4. What is the difference between milk teeth and permanent teeth?
5. What is saliva and where is it produced?
6. What is the function of taste buds?
7. How long does food stay in the stomach?
8. How does the presence of acid in the stomach help?
D. LONG ANSWER QUESTIONS: Answer these questions.
2. Explain through diagrams ingestion of food in a. Amoeba b. Hydra.
3. Name the four types of teeth in your mouth. What are their functions?
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Answer 1

Answer:

1.All prey gets swallowed whole, because frogs can't chew. If they have teeth at all, they are usually only on the upper jaw, used for holding onto prey and not for biting or chewing. Some frogs catch insects with a long sticky tongue. ... Tongueless frogs use their fingers to catch prey and stuff it into their mouths.

2.Spiders digest their food outside their bodies. After their prey is captured, spiders expel digestive enzymes from their intestinal tract onto the victim. The enzymes break down its body tissues and, after a few seconds, the spider sucks up the predigested, liquid tissues.