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21
Which one is a mammal?
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Answer: Option D
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22
Quinine, used to treat malaria is obtained from which plant's part?
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Answer: Option C
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23
Who among the following was the first to determine the composition of a virus?
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Answer: Option A
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24
Major component of cotton is
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Answer: Option C
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25
According to Plant (1965), in which of the following types of stomata the subsidiary cells develop from the cells lying around the mother cell of the guard cells?
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Answer: Option B
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26
We get morphine from
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Answer: Option C
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27
Which of the following is a type of bryophyte that lives in many environments and is characterised by its small, flattened leaves, root-like rhizoids and peristome?
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Answer: Option A
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28
Assertion (A): Some bacteria can synthesize their own food.
Reason (R): These bacteria have green matter called chloroplasts.
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Answer: Option C
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29
Red chillies are hot because these contain
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Answer: Option B
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30
The nectaries of grandular tissues present on leaves e.g., at the junction of petiole and leaf blade are known as
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Answer: Option A
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