class 7 science mcq
34 Robert Hooke observed cells in the cork of tree
1. oak
2. neem
3. mango
4. all of the above
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33 Nucleus was first observed by .....
1. robert hooke
2. robert brown
3. charles
4. janssen
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32 Brown claimed that the integral part of the cell is
1. cell wall
2. cytoplasm
3. stomata
4. nucleus
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31 Nucleus was first observed in the leaves of
1. orchid
2. oak
3. wheat
4. rice
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