pollen grains are spiny. give reason
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Some plants produce echinate pollen, i.e. pollen grains with spines. Spiny pollen grains are known from many species of the Malvaceae, some species of the Convolvulaceae, Cucurbitaceae and Asteraceae. Due to our experimental tests, bumblebees are unable to collect spiny pollen grains, because they cannot compact them in their pollen baskets; we thus hypothesese that spines serve
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Answer:
Because when sticky or spiny, they get stuck or carried away with the insects
Explanation:
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