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Describe the important characteristics of gymnosperms.
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Answer in one word or one line
Give the common name of Periplaneta americana
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Answer in one word or one line.
How many segments are present in the abdomen of cockroach?
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Answer in one word or one line.
Where do you find Malpighian tubules?
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What are the characteristics of prokaryotic cells?
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What are the assumptions made during the calculation of net gain of ATP?
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What is the significance of double circulation?
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Terrestrial animals are generally either ureotelic or uricotelic, not ammonotelic, why?
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Give a brief account of: Mechanism of vision
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Plants of this group are diploid and well adapted to extreme conditions. They grow bearing sporophylls in compact structures called cones. The group in reference is ______.
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The giant Redwood tree (Sequoia sempervirens) is a/an ______.
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Each plant or group of plants has some phylogenetic significance in relation to evolution: Cycas, one of the few living members of gymnosperms is called as the ‘relic of past’. Can you establish a phylogenetic relationship of Cycas with any other group of plants that justifies the above statement?
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In which plant will you look for mycorrhiza and corolloid roots? Also explain what these terms mean.
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Lichen is usually cited as an example of ‘symbiosis’ in plants where an algal and a fungal species live together for their mutual benefit. Which of the following will happen if algal and fungal partners are separated from each other?
- Both will survive and grow normally and independent from each other.
- Both will die
- Algal component will survive while the fungal component will die.
- Fungal component will survive while algal partner will die.
Based on your answer how do you justify this association as symbiosis.
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What is the function of phloem parenchyma?
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Below is a list of plant fibres. From which part of the plant these are obtained
Hemp
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Below is a list of plant fibres. From which part of the plant these are obtained
Jute
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The following terms has some anatomical significance. What do these terms mean? Explain with the help of line diagrams.
Plasmodesmata
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Which one of the following statements is true for cockroach?
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Where are sclerites present in cockroach?
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