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Ragweed pollen has a diameter

Ragweeds are flowering plants, common in North America. Pollen from ragweed causes many people allergy symptoms. The seed of
1. 5 answers
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Ragweed pollen has a diameter of about 2.3x10(exponent -5)meters. Under a microscope the pollen appears to have a diameter of
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2. asked by Alicia
3. 493 views
Ragweed pollen has a diameter of about 2.3x10(exponent -5)meters. Under a microscope the pollen appears to have a diameter of
1. 1 answer
2. asked by Alicia
3. 455 views
Is ragweed pollen t-dependent or t- independent and why?
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2. asked by stacey
3. 351 views
On Sunday, the total pollen count for ragweed in Dr. Daffodil's town is 35parts per million (ppm). Dr. Daffodil sees 7 patients
1. 1 answer
2. 21 views
there are mechanisms that prevent pollination of one plant species by pollen from another. this would preventa) the formation of
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2. asked by serena
3. 510 views
Bees do not pollinate flowers on purpose. When a honeybee is collecting pollen from the anthers, it puts the pollen in special
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2. 79 views
Pollen transport in flowersPollination is the transfer of pollen containing male sex cells from the stamens of a plant to the
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2. asked by John
3. 638 views
Dan learns that there is a high pollen count on the news. When he goes outside, his eyes itch, he sneezes, and he has a runny
1. 1 answer
2. 13 views
Dan learns that there is a high pollen count on the news. When he goes outside, his eyes itch, he sneezes, and he has a runny
1. 1 answer
2. asked by a
3. 61 views