Question

1. Differentiate between the following a) Respiration and Photosynthesis b) Respiration and breathing. c) Aerobic respiration and anaerobic respiration. d) Inhalation and exhalation e) Autotrophic nutrition and Heterotrophic nutrition. f) Parasites and symbionts 2. Give reasons for the following a) Skin of earthworm and gills of fish are thin, moist and richly supplied with blood capillaries. b) Leguminous crops are beneficial to farmers. c) Excessive exercise causes muscle cramps. 3. Draw and explain the structure of the respiratory system. 4. Enumerate the respiratory organs found in different animals. 5. Write and explain the equation for photosynthesis. 6. List the factors essential for photosynthesis. 7. Generally humans are not able to continue producing energy by anaerobic respiration for very long.What discomfort is caused as a result of continued anaerobic respiration. What substance is responsible for this discomfort and how is this condition normalized? 8. Even though insectivorous plants are green plants still they depend on insects. Comment. 9. How would you de-starch the leaves of a potted plant? How would you then check that the de-starching had been effective? 10. The term endothermic process describes a process or reaction in which the system absorbs energy from its surroundings. Do you think photosynthesis is an endothermic reaction? Justify. 11. There is no waste in a forest. Explain.( Hint : decomposers) 12. Define a food web. Identify a food web that may be operating in a forest ecosystem. 13. Discuss the role of forest in maintaining a) The balance between oxygen and carbon dioxide in the atmosphere b) Water cycle. c) Temperature.

Answer 1

Answer:

respiration: oxygen is taken in and carbon dioxide is libretaed out.

photosynthesis: producing food and capturing energy

Explanation:

hope this will help you

Answer 2

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