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.