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www.GOALias.blogspot.com3. Choose the correct options:(a)In plants, water is transported through(i) Xylem (ii) Phloem(iii) Stomata (iv) Root hair(b) Water absorption through roots can be increased by keeping theplants(i) in the shade(ii) in dim light(iii) under the fan(iv) covered with a polythene bag4. Why is transport of materials necessary in a plant or in an animal?Explain.5. What will happen if there are no platelets in the blood?6. What are stomata? Give two functions of stomata.7. Does transpiration serve any useful function in the plants? Explain.8. What are the components of blood?9. Why is blood needed by all the parts of a body?10. What makes the blood look red?11. Describe the function of the heart.12. Why is it necessary to excrete waste products?13. Draw a diagram of the human excretory system and label the variousparts.Extended Learning — Activities and Projects1. Find out about blood groups and their importance.2. When a person suffers from chest pain, the doctor immediately takesan ECG. Visit a doctor and get information about ECG. You may evenlook up an encyclopaedia or the internet.You can read more on the following website:www.health.howstuffworks.com/adam-200142.htmDid you know?There is no substitute for blood. If people lose blood from surgery or injuryor if their bodies cannot produce enough blood, there is only one way toget it — through transfusion of blood donated by volunteers. Blood isusually in short supply. Donating blood does not decrease the strength ofthe donors.132SCIENCE