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Symmetry in biology Reference Libraries

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Luidia sarsi
2013-08-12 10:57:03

Luidia sarsi is a species of starfish that is classified within the Luidiidae family. It can be found in a range that extends from the Mediterranean Sea to Norway and prefers a habitat in muddy or sandy areas. Adult individuals display pentaradial symmetry or pentamerism with five long arms that are bordered by bands of white spines that occur in groups of three. These arms reach a length of...

Bathocyroe fosteri
2014-01-05 00:00:00

Bathocyroe fosteri is a species of lobate ctenophore found in all oceans around the world. It is typically found at intermediate depths and is very abundant near the Mid-Atlantic Ridge. This deep-sea comb jelly is named for Alvin (DSV-2) pilot Dudley Foster, who is credited with first collecting the specimens. This specimen measures about two inches tall and is bioluminescent. This species,...

Word of the Day
sough
  • A murmuring sound; a rushing or whistling sound, like that of the wind; a deep sigh.
  • A gentle breeze; a waft; a breath.
  • Any rumor that engages general attention.
  • A cant or whining mode of speaking, especially in preaching or praying; the chant or recitative characteristic of the old Presbyterians in Scotland.
  • To make a rushing, whistling, or sighing sound; emit a hollow murmur; murmur or sigh like the wind.
  • To breathe in or as in sleep.
  • To utter in a whining or monotonous tone.
According to the OED, from the 16th century, this word is 'almost exclusively Scots and northern dialect until adopted in general literary use in the 19th.'
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