News tagged with pollen tubes
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Search results for pollen tubes
Well-traveled wasps provide hope for vanishing species
Nov 09, 2009 |
5 / 5 (3) |
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They may only be 1.5mm in size, but the tiny wasps that pollinate fig trees can travel over 160km in less than 48 hours, according to research from scientists at the University of Leeds. The fig wasps are transporting ...
Study finds bees can learn differences in food's temperature
Nov 17, 2009 |
1 / 5 (1) |
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Biologists at UC San Diego have discovered that honeybees can discriminate between food at different temperatures, an ability that may assist bees in locating the warm, sugar-rich nectar or high-protein pollen ...
California's Ancient Kelp Forest
Nov 10, 2009 |
4.6 / 5 (5) |
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(PhysOrg.com) -- The kelp forests off southern California are considered to be some of the most diverse and productive ecosystems on the planet, yet a new study indicates that today's kelp beds are less extensive and lush ...
Argonne 'homegrown' hybrid solar cell aims for low-cost power
Nanotechnology / Nanomaterials
Nov 10, 2009 |
4.3 / 5 (12) |
3
(PhysOrg.com) -- Scientists at the U.S. Department of Energy’s (DOE) Argonne National Laboratory have refined a technique to manufacture solar cells by creating tubes of semiconducting material and then "growing" ...
Supervolcano eruption -- in Sumatra -- deforested India 73,000 years ago
Space & Earth / Earth Sciences
Nov 23, 2009 |
4.5 / 5 (17) |
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A new study provides "incontrovertible evidence" that the volcanic super-eruption of Toba on the island of Sumatra about 73,000 years ago deforested much of central India, some 3,000 miles from the epicenter, ...
After mastodons and mammoths, a transformed landscape
Space & Earth / Earth Sciences
Nov 19, 2009 |
4.6 / 5 (12) |
1
(PhysOrg.com) -- Roughly 15,000 years ago, at the end of the last ice age, North America's vast assemblage of large animals -- including such iconic creatures as mammoths, mastodons, camels, horses, ground ...
Vaccine against chlamydia not far away
Nov 16, 2009 |
not rated yet |
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When a woman becomes infected with Chlamydia, the first white blood cells that arrive at the scene to fight the infection are not the most effective. This is shown by a thesis from the Sahlgrenska Academy. This discovery ...
Trying last-ditch lung bypass for worst swine flu
Nov 23, 2009 |
not rated yet |
1
(AP) -- A technology originally developed for premature babies may be helping to save some of the sickest swine flu patients by rerouting their blood so their lungs can rest.
The evolution of orchids
Nov 19, 2009 |
4.8 / 5 (8) |
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(PhysOrg.com) -- Charles Darwin and many other scientists have long been puzzled by the evolution of orchids, the largest and most diverse family of flowering plants on Earth. Now genetic sequencing is giving ...
Engineer Discovers Why Particles Like Flour Disperse on Liquids
Nov 16, 2009 |
4.3 / 5 (15) |
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(PhysOrg.com) -- Even if you are not a cook, you might have wondered why a pinch of flour (or any small particles) thrown into a bowl of water will disperse in a dramatic fashion, radiating outward as if it ...
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