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Dictionary » R » Ring-necked Ring-neckedring-necked (Science: zoology) Having a well defined ring of colour around the neck. (Science: zoology) ring-necked duck, an American scaup duck (Aythya collaris). The head, neck, and breast of the adult male are black, and a narrow, but conspicuous, red ring encircles the neck. This ring is absent in the female. Synonym: ring-neck, ring-necked blackhead, ringbill, tufted duck, and black jack. ![]()
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Results from our forumRe: Natural selection is proven wrong... but there are subspecies of different kinds of cows and subspecies of different kinds of camels. In the wild there is what are called "ring species" that slowly extended their territory in a direction that in time brings them back to where they started, forming a ring. By the time ...
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can galactose be convert into fructose?... a more favorable reaction to phosphorylate a hydroxyl group on the chain (carbon 1) in a ketose sugar than any of the hydroxyl groups inside the ring of an aldose sugar (aldose sugars like glucose do not have a hydroxyl group on Carbon 1 and have a carbonyl group instead. You need a hydroxyl ...
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Re: two different color eyesboth my eyes have 3 colors in them blue yellow and green, i have 3 cirkles in my eyes that have one color each the outer ring is blue and the next is yellow and the green is the last. :shock:
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Why do you keep talking about species... Squids, Cuttlefishes, Octopus, Nautilus Class: Gastropoda Snails, Slugs Class: Polyplacophora Chitons Kingdon: Plantae Phylum: Magnoliophyta Flowering Plants Order: Casuarinales Casuarinas and She-Oaks Order: Fabales Wattles, Peas and Cassias Order: Gentianales Gentians and relatives Order: Malvales ...
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The Colin Leslie Dean species paradox... or with the resulting species, or as something else entirely? Many species today exist right on this cusp of a speciation event, and are called ring species. To put it very briefly, population A can interbreed with population B, which can interbreed with population C, but A and C can't interbreed. ...
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