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4:31
Diatoms --part 1. introduction and collection of diatoms
The video "Diatoms" is composed of three parts. Part 1: Diatoms are briefly introduced and...
published: 20 Aug 2010
author: diatomp
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1:07
Beautiful Diatoms
Take the FREE tour of our beautiful new, 222-page ebook, SAVING GIANTS: Cultivation and Co...
published: 03 Dec 2010
author: ipsfdotcom
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1:16
Diatoms in action
Diatoms are unicellular algae. They have beautiful ornate cell walls made of silica. Basic...
published: 02 Jul 2009
author: Iainp1211
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49:31
The Beauty of Diatoms - Perspectives on Ocean Science
Join Mark Hildebrand on a journey from the open waters of the world's oceans to sophistica...
published: 25 Apr 2008
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5:37
Diatoms. Part 2: Preparation of permanent slide)
The video "Diatoms" is composed of three parts. Part 2: Proper preparation of diatom slide...
published: 20 Aug 2010
author: diatomp
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5:39
Diatoms. Part 3: Observation of diatoms
The video "Diatoms" is composed of three parts. Part 3. Diatom species that vary with chan...
published: 20 Aug 2010
author: diatomp
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15:08
200g Reef Tank - Episode 24 - Cyano / Diatoms ( part 1 )
Ahoy shipmates well it's not been plain sailing this last couple weeks. In fact I'm curren...
published: 12 Dec 2013
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14:34
200g Reef Tank - Episode 25 - Cyano / Diatoms ( part 2 )
Ahoy shipmates happy 2014 to you all and welcome back to cyano / diatoms part 2. In this e...
published: 12 Jan 2014
author: JDReef4220
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6:43
The Important Little Life of Dylan Diatom
Watch this 3D animation of Dylan, a centric diatom in the Arctic Ocean. A floating plant a...
published: 08 Jul 2009
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2:10
Richard Dawkins: Diatoms: The Evolution of a New Species - Nebraska Vignettes #5
Richard Dawkins explains how microscopic algae called Diatoms uniquely evolved in Yellowst...
published: 21 Jul 2009
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8:53
Day 11, diatom bloom
Showing what a newly set up saltwater tank will do in the setting up stages. Diatoms from ...
published: 03 Oct 2012
author: benboarder09
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4:57
Nano Lagoon (14): BIG Diatom Bloom
http://www.ipsf.com Just ten days after adding the NanoStart microorganism kit to our life...
published: 02 Feb 2009
author: ipsfdotcom
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3:01
Science Nation - Diatom algae populations tell a story about climate change in Greenland
With support from the National Science Foundation (NSF), lake ecologist Jasmine Saros and ...
published: 04 Nov 2013
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1:05
Diatoms
...
published: 20 Nov 2009
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1:23
DIATOMS what are diatoms, what is a diatom
http://www.NuAlgi.NET 877-224-4899 Diatoms what are diatoms, what is a diatom Diatoms are ...
published: 27 Oct 2012
author: Lake Shore
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7:21
Diatoms - On The Move
A video on diatoms on the move as well as some of their friends....
published: 09 May 2012
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6:05
75 gallon reef tank day 7 diatoms!!
Diatoms!!! :-)...
published: 17 May 2013
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1:01
Protozoan With Diatoms. IIC, 500X. Amazing High Definition Microscopy Video! 1080P!
...
published: 26 Mar 2012
author: Craig Smith
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3:18
Brown Algae or Diatoms? Not sure what to do....
My 125 has been getting this brown algae. I Scrub the rocks, wipe the glass, siphon the gr...
published: 21 May 2013
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2:20
How to remove BROWN algae from fishtank (Diatoms) using JBL SilicaEx
Sorry about my voice in this video (have a cold!) This is my video about how to remove bro...
published: 03 Mar 2014
author: asha rashid
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4:27
Nahnee Bori "Diatoms" (Official Video) - Mr. Man
Official music video from Nahnee Bori's full-length album, Mr. Man. http://nahneebori.band...
published: 02 Dec 2014
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2:02
Stauroneis Diatom / Full HD / BF Microscope
Stauroneis Diatom / Full HD / BF Microscope 500-1250x....
published: 07 Jun 2012
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0:30
ATLAS by Carl Zeiss Microscopy - Diatoms Zoom-In Application Video
Large Area Imaging with ATLAS and scanning electron microscopes by Carl Zeiss. Zoom-in wit...
published: 20 Aug 2012
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22:39
Spore! Galactic Adventures #1 - Om, Nom Nom! Diatoms!
With a great splash, our unicellular little critter starts out in the murky tide pools of ...
published: 16 Jun 2014
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Diatoms are a major group of algae, and are one of the most common types of phytoplankton. Most diatoms are unicellular, although they can exist as colonies in the shape of filaments or ribbons (e.g. Fragilaria), fans (e.g. Meridion), zigzags (e.g. Tabellaria), or stellate colonies (e.g. Asterionella). Diatoms are producers within the food chain. A characteristic feature of diatom cells is that they are encased within a unique cell wall made of silica (hydrated silicon dioxide) called a frustule. These frustules show a wide diversity in form, but usually consist of two asymmetrical sides with a split between them, hence the group name. Fossil evidence suggests that they originated during, or before, the early Jurassic Period. Diatom communities are a popular tool for monitoring environmental conditions, past and present, and are commonly used in studies of water quality. Some diatoms are capable of movement via flagellation.

There are more than 200 genera of living diatoms, and it is estimated that there are approximately 100,000 extant species. Diatoms are a widespread group and can be found in the oceans, in freshwater, in soils and on damp surfaces. Most live pelagically in open water, although some live as surface films at the water-sediment interface (benthic), or even under damp atmospheric conditions. They are especially important in oceans, where they are estimated to contribute up to 45% of the total oceanic primary production.[citation needed] Spatial distribution of marine phytoplankton species is restricted both horizontally and vertically. Usually microscopic, some species of diatoms can reach up to 2 millimetres in length.




This page contains text from Wikipedia, the Free Encyclopedia - http://en.wikipedia.org/wiki/Diatom

This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.


Listen to Richard Dawkins interviews

Clinton Richard Dawkins, FRS, FRSL (born 26 March 1941), known as Richard Dawkins, is a British ethologist, evolutionary biologist and author. He is an emeritus fellow of New College, Oxford, and was the University of Oxford's Professor for Public Understanding of Science from 1995 until 2008.

Dawkins came to prominence with his 1976 book The Selfish Gene, which popularised the gene-centered view of evolution and introduced the term meme. In 1982 he introduced an influential concept into evolutionary biology, presented in his book The Extended Phenotype, that the phenotypic effects of a gene are not necessarily limited to an organism's body, but can stretch far into the environment, including the bodies of other organisms.

Dawkins is an atheist, a vice president of the British Humanist Association, and a supporter of the Brights movement. He is well known for his criticism of creationism and intelligent design. In his 1986 book The Blind Watchmaker, he argued against the watchmaker analogy, an argument for the existence of a supernatural creator based upon the complexity of living organisms. Instead, he described evolutionary processes as analogous to a blind watchmaker. He has since written several popular science books, and makes regular television and radio appearances, predominantly discussing these topics. In his 2006 book The God Delusion, Dawkins contends that a supernatural creator almost certainly does not exist and that religious faith is a delusion—"a fixed false belief." As of January 2010 the English-language version has sold more than two million copies and had been translated into 31 languages.




This page contains text from Wikipedia, the Free Encyclopedia - http://en.wikipedia.org/wiki/Richard_Dawkins

This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.