IGCSE Biology Paper-3: Specimen Questions with Answers 62 - 65 of 358

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Passage

Figure shows a food web from the grassland ecosystem.

Mage Shows Food Web of Grassland Ecosystem

Question 62 (2 of 4 Based on Passage)

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Short Answer▾

Figure shows a pyramid of energy for a food chain from above food web. Which biotic organism have maximum energy. Answer with a suitable reason.

Image Shows Food Chain of Grassland Ecosystem

Explanation

Pyramid of energy shows the amount of useful energy in each tropic level and it decreases as the organisms in every level use it. The loss of energy is due to respiration and heat loss. The top consumer of a food pyramid, as a group, thus have much less energy available to support them than those closer to the bottom.

Question 63 (3 of 4 Based on Passage)

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Short Answer▾

Make a food chain by given picture.

Explanation

Grass — Seed eating bird — hawk — leopard

Question 64 (4 of 4 Based on Passage)

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Short Answer▾

Name an organism from this food web that is a Top consumer

Explanation

Leopard is the top consumer in above food web

Question 65

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Short Answer▾

Write two differences between asexual and sexual reproduction.

Explanation

Above Table Shows Difference between Sexual and Asexual Reproduction
Asexual reproductionSexual reproduction
Single individual is parentTwo parents give rise to offspring
Offspring are genetically identical to the parentOffspring have a unique combination of genes inherited from both parents

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