Answer the following questions. 1. What are villi? State their function

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INDIAN SCHOOL MUSCAT
DEPARTMENT OF SCIENCE
SUBJECT: SCIENCE
Revision Worksheet No: 09
TOPIC : Nutrition in Animals
STD : 7
Coordinating Staff: Mrs Bindhu Saji
Date of Issue: 30.09.2015
Name of the student: __________________________
Class ___ Sec: _____
Roll No: ____
Answer the following questions.
1. What are villi? State their function
2. Name the glands associated with digestion, their secretions and functions.
3. What is peristalsis?
4. What are the functions of the tongue?
5. Name the type of carbohydrate that can be digested by ruminants but not by
humans. Give reason
6. Why do we get instant energy from glucose?
7. Differentiate between Nutrition in Amoeba and human beings.
8. How do the following animals take in their food?
Name of the
animals
Hydra
Mouth parts to catch prey
Paramecium
Frog
Butterflies and
houseflies
P.T.O
9.Can we survive only on raw leafy vegetables / grass? Discuss.
10.Draw and label the diagrammatic representation of the digestive system in
humans.
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