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Just as on dry land, the oceans are full of millions of viruses, by far the tiniest form of life. The smallest are about 40 nanometers in diameter. To put that into perspective, if you lined these marine viruses up end to end alongside a ruler, you would have to lay down 635,000 of them before hitting the 1-inch mark. Even the largest marine viruses are only about 400 nanometers.
Just as on dry land, the oceans are full of millions of viruses, by far the tiniest form of life. The smallest are about 40 nanometers in diameter. To put that into perspective, if you lined these marine viruses up end to end alongside a ruler, you would have to lay down 635,000 of them before hitting the 1-inch mark. Even the largest marine viruses are only about 400 nanometers.
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Zooplankton
;Microscopic invertebrate animals that swim or drift in water
;Base of the food chain
;Sizes range from one-tenth of a millimeter to four millimeters (smaller than the head of a pin)





Revision as of 13:28, 5 February 2016


https://en.wikipedia.org/wiki/Extinction

http://www.greenpolicy360.net/w/Tree_of_Life

You are here on the cladogenetic tree m.jpg


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The Smallest Marine Plants

The smallest living things from the plant kingdom living in our oceans are single-celled green algae. These tiny cousins of the redwood tree can be measured at 5 micrometers or less, about five times larger than marine bacteria but still quite small. You would have to line up 5,080 of these little plants to reach 1 inch.

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The Smallest of the Small: Marine Viruses

Just as on dry land, the oceans are full of millions of viruses, by far the tiniest form of life. The smallest are about 40 nanometers in diameter. To put that into perspective, if you lined these marine viruses up end to end alongside a ruler, you would have to lay down 635,000 of them before hitting the 1-inch mark. Even the largest marine viruses are only about 400 nanometers.

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Zooplankton

Microscopic invertebrate animals that swim or drift in water
Base of the food chain
Sizes range from one-tenth of a millimeter to four millimeters (smaller than the head of a pin)

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