01 Lenses with two focal lengths are used by persons suffering from _____.

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02 Light enters the eye through the _____.

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03 Short-sightedness is also called _____.

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04 Fishes have a _____-chambered heart.

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05 Which of the following has only two chambers in the heart?

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06 Fishes have a:

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07 Which animal differs from the other three?

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08 Identify the FALSE statement regarding blood circulation in fishes.

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09 Which is the most poisonous fish among the options in the source…

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10 Which statement is NOT TRUE about fishes?

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