Biology Practice Question and Answer
8 Q: Which of the following is a correct match?
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63cfc2cb0d9e560db8e69d3f- 1Down's syndrome - 21st chromosometrue
- 2Sickle-cell anaemia - X-chromosomefalse
- 3Haemophilia - Y- chromosomefalse
- 4Parkinson's - X and Y-chromosomefalse
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Answer : 1. "Down's syndrome - 21st chromosome "
Q: Which group of animals are named because of their spiny skin and a peculiar water-driven tube system that they use for moving around?
771 064b527acefb5ba16688217c6
64b527acefb5ba16688217c6- 1Hemichordatafalse
- 2Aschelminthesfalse
- 3Echinodermatatrue
- 4Molluscafalse
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Answer : 3. "Echinodermata "
Explanation :
1. All the creatures of Echinodermata phylum are marine and have thorny bodies.
2. There is a mass flow system in their body.
3. A specific water-conveying canal system is found, which helps in their movement.
Q: The tissue in man where no cell division occur after birth is
768 063cfc218307947462be50b2d
63cfc218307947462be50b2d- 1Skeletalfalse
- 2Nervestrue
- 3Connectivefalse
- 4Germinalfalse
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Answer : 2. "Nerves "
Q: Which of the following diseases is caused by fungus?
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644be2496b39d4ce23d716b3- 1Ringwormtrue
- 2Diarrhoeafalse
- 3Small poxfalse
- 4Poliofalse
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Answer : 1. "Ringworm"
Q: Deficiency of which one of the following causes xeroph thalmia
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6389ba5aa528960cccf484b7- 1Vitamin B3false
- 2Vitamin B12false
- 3Vitamin Atrue
- 4Vitamin Cfalse
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Answer : 3. "Vitamin A"
Q: All of the following are excretory (waste) products of animals, except
749 062cd62a3e05adc389382a29f
62cd62a3e05adc389382a29f- 1Carbohydratestrue
- 2Ureafalse
- 3Uric Acidfalse
- 4Ammoniafalse
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Answer : 1. "Carbohydrates"
Q: The phrase ‘Survival of the fittest’ as a way of describing the mechanism of natural selection was coined by __________.
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632c571b5c208a6bf7eb5de5- 1Louis Pasteurfalse
- 2Charles Babbagefalse
- 3Herbert Spencertrue
- 4Marie Curiefalse
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Answer : 3. "Herbert Spencer"
Q: Psidium guajava is the scientific name of ___________.
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62de81d98c996774cb938ba5- 1Guavatrue
- 2Mangofalse
- 3Bamboofalse
- 4Jack fruitfalse
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