CIE Biology Paper-3: Specimen Questions 98 - 102 of 230

Question number: 98

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The diagram shows a flower with its filaments and anthers.

Image shows a flower with its filaments and anthers.

Image shows a flower with its filaments and anthers.

Figure shows flower and its male reproductive parts, name the method by which such plant is pollinated

By which method above flower most likely pollinated

Explanation

Wind pollination

Passage

Figure below shows an insect pollinated flower of rose sweet pea.

 Image of Rose sweet pea, which is an insect pollinated flower

Image of Rose sweet pea, which is an insect pollinated flower

found the various characteristics, which shows it is an insect pollinated flower.

Question number: 99 (1 of 3 Based on Passage) Show Passage

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Give three examples of Wind and Insect Pollinated plants.

Explanation

Examples of wind pollinated and insect pollinated plants

Examples of wind pollinated and insect pollinated plants

found the name of three examples which shows wind and insect pollinated plants

Question number: 100 (2 of 3 Based on Passage) Show Passage

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Explain how a feature, visible in, suggests that this flower is insect pollinated.

Explanation

Insect pollinated flowers have large colored petals which attracts insects. Pollen often sticky or spiky, anthers firm and inside flower, stigma present inside the flower.

Question number: 101 (3 of 3 Based on Passage) Show Passage

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Suggest two characteristics, which shows the difference between insect-pollinated flowers and wind pollinated flowers.

Explanation

(i) Insect pollinated flowers are bright with nectar and wind pollinated flowers are dull and nectar less.

(ii) Insects pollinated flower produce small amount of pollen grains and wind pollinated flowers produce large amount of pollen grains.

Question number: 102

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Homeostasis is the property of a system in which variables are regulated so that internal conditions remain stable and relatively constant.

Write two importance of homeostasis

Explanation

(a) To maintain internal environment of the organisms especially higher vertebrates in a steady and balance state.

(b) To establish optimum conditions of organism.

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