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Botanika (88)

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Cherry tree in autumn
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Cherry tree in spring
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Cherry tree in summer
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Cherry tree in winter
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Illustration of Eurasian milfoil (Myriophyllum spicatum), an aquatic plant.
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Illustration of a food web with labels. A food web is a set of interconnected food chains by which energy and materials circulate within an ecosystem.
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Northern milfoil.
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Illustration of purple loosestrife (Lythrum salicaria).
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Illustration of wild calla (Calla palustris), a flowering plant native to cool temperate regions of the Northern Hemisphere, growing in bogs and ponds.
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Labelled illustration of the wild iris (Dietes iridioides).
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Illustration of the wild iris (Dietes iridioides).
! EN_90261299_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Great white shark (Carcharodon carcharias) anatomy, computer artwork.
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! EN_90273128_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Plant evolution, diagram. Thirteen major groupings of plants are shown over four geologic time periods from 542 million years ago to 65 million years ago. There are four independent groupings: the club mosses, the horsetails and the ferns (all three at left), and the ginkgoes (far right). At centre are the cycads, seed ferns and cycadeoids, which are related. The seed ferns led to the evolution of flowering plants (top) which now dominate plant life on Earth. At right are the primitive conifers, which led to the evolution of the pines, redwoods and cypresses, the Auraucaria, and the podocarps.
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! EN_90273128_0002 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Plant evolution, diagram. Thirteen major groupings of plants are shown over four geologic time periods from 542 million years ago to 65 million years ago. There are four independent groupings: the club mosses, the horsetails and the ferns (all three at left), and the ginkgoes (far right). At centre are the cycads, seed ferns and cycadeoids, which are related. The seed ferns led to the evolution of flowering plants (top) which now dominate plant life on Earth. At right are the primitive conifers, which led to the evolution of the pines, redwoods and cypresses, the Auraucaria, and the podocarps.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90273128_0003 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Plant evolution, diagram. Thirteen major groupings of plants are shown over four geologic time periods from 542 million years ago to 65 million years ago. There are four independent groupings: the club mosses, the horsetails and the ferns (all three at top), and the ginkgoes (bottom). At centre are the cycads, seed ferns and cycadeoids, which are related. The seed ferns led to the evolution of flowering plants (right) which now dominate plant life on Earth. At lower centre are the primitive conifers, which led to the evolution of the pines, redwoods and cypresses, the Auraucaria, and the podocarps.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90273128_0004 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Plant evolution, diagram. Thirteen major groupings of plants are shown over four geologic time periods from 542 million years ago to 65 million years ago. There are four independent groupings: the club mosses, the horsetails and the ferns (all three at top), and the ginkgoes (bottom). At centre are the cycads, seed ferns and cycadeoids, which are related. The seed ferns led to the evolution of flowering plants (right) which now dominate plant life on Earth. At lower centre are the primitive conifers, which led to the evolution of the pines, redwoods and cypresses, the Auraucaria, and the podocarps.
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! EN_90273485_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Pollen and dust, computer artwork. Both pollen and dust are allergens that can cause allergic rhinitis when inhaled. Allergic rhinitis is the inflammation of the lining of the nasal cavity, which causes a runny nose, sneezing and watering eyes.
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! EN_90273485_0002 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Pollen and dust, computer artwork. Both pollen and dust are allergens that can cause allergic rhinitis when inhaled. Allergic rhinitis is the inflammation of the lining of the nasal cavity, which causes a runny nose, sneezing and watering eyes.
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! EN_90254973_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Deforestation due to the mountain pine beetle, artwork. The mountain pine beetle (Dendroctonus ponderosae) is found in the forests of western North America. It kills pine trees by boring underneath the bark, laying its eggs, and feeding on the phloem tissue. As of 2008, large outbreaks have killed large swathes of forest in British Columbia and Colorado. It is estimated that by 2020, the resulting deforestation will have released millions of tons of carbon dioxide into the atmosphere.
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! EN_90254973_0002 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Deforestation due to the mountain pine beetle, artwork. The mountain pine beetle (Dendroctonus ponderosae) is found in the forests of western North America. It kills pine trees by boring underneath the bark, laying its eggs, and feeding on the phloem tissue. Two weeks later (scale across bottom), the tree will be severely damaged or dead, and its pines will have turned red. As of 2008, large outbreaks have killed large swathes of forest in British Columbia and Colorado. It is estimated that by 2020, the resulting deforestation will have released millions of tons of carbon dioxide into the atmosphere.
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