Biology 2010 | Study Mode

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Question 41

If both parents are heterozygous for a trait, the probability that an offspring will be recessive for that trait is

\(\frac{1}{2}\)

\(\frac{3}{4}\)

\(\frac{1}{4}\)

Explanation

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Correct option: C

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Question 42

Use the diagram above to answer this question.In which plantation are all the trees between the height of 2-4m? Bio-question-image

lll

Explanation

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Correct option: A

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Question 43

Use the diagram above to answer this question.Which of the following is a true feature of plantation ll? Bio-question-image

it has the highest number of trees of about 2m high.

it has highest number of trees

it has the highest number of tall trees

the height of all its trees range between 2m and 6m

Explanation

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Correct option: A

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Question 44

Use the diagram above to answer this question.The movement of material in the xylem and phloem tissues of the plant are represented by the arrows labelled Bio-question-image

lll and IV respectively

ll and l respectively

l and ll respectively

l and lll respectively

Explanation

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Correct option: A

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Question 45

Use the diagram above to answer this question.During photosynthesis, the arrow labelled ll represents the Bio-question-image

escape of mineral salts

absorption of energy from the sun

release of carbon (IV) oxide

release of oxygen as a by-product

Explanation

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Correct option: D

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Question 46

Use the diagram above to answer this question.The main function of the feathers covering the part labelled is to Bio-question-image

prevent ectoparasites from attacking the animal

generate heat to keep the animal warm

provide some power for flight

serve as insulator to maintain body heat

Explanation

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Correct option: D

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Question 47

Use the diagram above to answer this question.Based on the shape and structure of the beak and feet, the bird represented is likely to feed mainly on Bio-question-image

flesh

fruits

seeds

nectar

Explanation

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Correct option: A

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Question 48

Use the diagram above to answer this question.With respect to their decreasing dependence on aquatic conditions for reproduction, which of the following is the correct arrangement of the animals represented? Bio-question-image