Which of the following has proved helpfu...

Which of the following has proved helpful in preserving pollen as fossils ?

A

Sporopollenin

B

Oil content

C

Cellulosic intine

D

Pollenkitt

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Select the correct match:
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Select the correct statement
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Which of the following has proved helpful in preserving pollen as fos...
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Offsets are produced by
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The experimental proof for semi-conservative replication of DNA was fi...
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Winged pollen grains are present in
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After karyogamy followed by meiosis, spores are produced exogenously i...
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Which one is wrongly matched?
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Match the items given in Column I with those in Column II and select t...
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In which of the following forms is iron absorbed by plants?
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Which one of the following plants shows a very close relationship with...
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Oxygen is not produced during photosynthesis by
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Which of the following elements is responsible for maintaining turgor ...
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What is the role NAD^(+) in cellular respiration ?
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Double fertilization is
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Pollen grains can be stored for several years in liquid nitrogen hav...
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What type of ecological pyramid would obtained with the following data...
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Natality refers to
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Which of the following is a secondary pollutant
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In stratosphere , which of the following element acts as a catalyst in...
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