10th Standard Science Chapter 7

10th Standard Science Chapter 7 Quiz. how much you know or you don’t  know,  test here. quiz  contains only 10 questions there no time limit.

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10th Standard Science Chapter 7

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Q1. The movement of a plant part in response to the force of attraction exerted by the earth is called:

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Q2. A big tree falls in a forest, but its roots are still in contact with the soil. The branches of this fallen tree grow straight up (vertically). This happens in response to:

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Q3. The main function of the plant hormone called abscisic acid is to:

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Q4. The growth of tendrils in pea plants is due to the:

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Q5. The plant hormone which triggers the fall of mature leaves and fruits from the plant body is:

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Q6. The stimulus in the process of thigmotropism is:

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Q7. A growing seedling is kept in a dark room. A burning lamp is placed near to it for a few days. The top part of seedling bends towards the burning candle. This is an example of:

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Q8. Dandelion flowers open the petals in bright light during the daytime but close the petals in dark at night. This response of dandelion flowers to light is called:

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Q9. The number of pairs of nerves which arises from the spinal cord is:

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Q10. Iodine is necessary for the synthesis of which of the following hormone?

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