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Q1 of 216 Page 465

In a bisexual flower inspire of the young stamens being removed artificially, the flower produces fruit. How is it possible?

This is possible because young stamens are not sexually mature.


Explanation: Stamens produce pollen grains only when they are sexually mature, i.e., older. Therefore dispersal, pollination, and fertilization don’t occur to produce the fruit.


More from this chapter

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26

In the experiment ‘To trace the path of ray of light passing through a glass prism’.

i) What is the correct set-up?


ii) Justify for your correct set-up.


27

When a (60 W, 220V) bulb and a (100 W, 220 V) bulb are connected in series, then which bulb will glow brighter?

OR


In a voltmeter, there are 20 divisions between the 0 mark and 0.5 V mark. Calculate the least count of the voltmeter.

2

Which part of the root is involved in the exchange of respiratory gases in plants?

3

Elements have been arranged in the following sequence on the basis of their increasing atomic masses.

F, Na, Mg, Al, Si, P, S, Cl, Ar, K


i. Pick two sets of elements which have similar properties.


ii. The given sequence represents which law of classification of elements?

Questions · 216
Model Test Paper
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