In the food chain Grass → Deer → Lion operating in a forest, what will happen if all the (a) Lions are removed (b) Deer are removed.
Updated 1/15/2026
What are nastic and curvature movements? Give one example of each.
Updated 1/15/2026
(a) In human body what is the role of • seminal vesicles and • prostate gland. (b) List two functions performed by testes in human beings.
Updated 1/15/2026
(a) List two differences between ‘holozoic nutrition’ and ‘saprophytic nutrition. Give two examples each of these two types of nutrition. (b) State the roles of liver and pancreas. (c) Name the organ which performs the following functions in humans: Absorption of digested food Absorption of water. (d) Explain the statement, “Bile does not contain any enzyme but it is essential for digestion.”
Updated 1/15/2026
(a) What is reflex action? Give its two examples. Illustrate the pathway followed by a message from the receptor in a reflex arc. (b) Name the actions of sympathetic and parasympathetic systems on eye.
Updated 1/15/2026
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