Biology Class X

BIOLOGY Class X 1. Make a folder by using Biodegradable material to enclose Holiday’s H.W. 2. Draw neat and labeled diagram of the following 1. Alimentary canal 2. Respiratory system 3. male Reproductive System 4. Female Reproductive System 5. Excretory System 6. L.S. of Flower 7. Flower with pollen tube 8. Sectional view of hear 9. Nephron of man Instructions 1. Use HP pencil 2. Draw single line diagram, No shading & No Colouring 3. Labeling should be on one side & in the same line 4. Label using capital letters From chapter- Our Environment Make a food web by using following animals and identify their trophic levels. Tiger, wolf, wild cat, mouse, shrew, fox, squirrel, Rabbit, Jackel, Wild dog, Deer, vegetation. 3. What is Biodegradable and non-biodegradable waste? How do they pollute the environment? 4. Make 2 pits in near by garden. Mark them as A & B. Put waste of each types in pits. Observe after 5, 15 & 25 days and take photographs. Write your observations along with photographs.