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Pollen is a
powdery substance produced by most
types of
flowers of seed
plants for the
purpose of ****ual reproduction. It
consists of
pollen grains (highly...
- optimal,
pollination will take place.
Pollen tubes grow out of a
germination pore on the
convex surface of the
pollen m**** on
pollinium into the
stigma and...
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great pollen abundance to
maximize pollen m**** collected per unit of time. This is done to
reduce provisioning time to
exploit as much
pollen as possible...
- 656–661. doi:10.1016/S0091-6749(97)70170-2. PMID 9389296. "the
total pollen grain m**** of
approximately 7.85 ng" Fonseca, A. E.; Westgate, M. E.; Gr****,...
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consuming the
larval pollen m****.
Sapygid wasps,
genus Sapyga, are also kleptoparasites, with the
larvae feeding on the
pollen.
Stelis montana is a cuckoo...
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pollen; most
other bees
possess a
structure called the scopa,
which is
similar in function, but is a
dense m**** of
branched hairs into
which pollen is...
-
excavate cells,
which they fill with
pollen and
nectar (as food for the larvae),
laying a
single egg on each
pollen m****. Male,
dorsal view
Female Head of...
- themselves.
Pollen germination has
three stages; hydration,
activation and
pollen tube emergence. The
pollen grain is
severely dehydrated so that its
m**** is reduced...
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ovoid "cells" in
which pollen mixed with
nectar is
provided as food for the
developing larvae; a
single egg is laid on a
pollen m****, and the cell is sealed...
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pollen powdery m**** shed from
anthers (of angiosperms) or
microsporangia (of gymnosperms); the
microspores of seed plants;
pollen-grains.
pollen-
m****...
