Rate This Topic

Average: 5/5

Recent Comments

hadi salman
June 14, 2013 11:06AM

i ask did demulsifier cause damage to catalysis in refinery process with referen...
hadi salman
June 14, 2013 11:06AM

i want ask about catalysis
Erich Knight
June 08, 2013 05:06AM

The Clovis people & the Younger Dryas knocked out 80% of large land mammals ...
SATHISH KOKKULA
June 04, 2013 08:06PM

Very clear and concise information.

Biology

Biology

Biology focuses on a single living organism at a time, examining the life stages, reproduction, morphology and range. In the case of fauna, there is considerable attention to the motor and social behavior of each species. For both animals and plants, biologists examine carefully the relationship of organisms to nutrient sources. Subject species may be microscopic as small as bacteria, or include the largest creatures ever known, such as present day cetaceans or extinct dinosaurs. Some biology studies focus on the reconstruction of events deep back into prehistory, while other research is preoccupied with events that are happening today and forward into the future.

    • Algae Featured Article Algae Algae

      Introduction Algae comprise a diverse group of typically autotrophic organisms, ranging from unicellular to multicellular forms. The largest and most complex marine forms... More »

    • Invasive Plant Abundance Featured Article Invasive Plant Abundance Invasive Plant Abundance

      Home and Away: Are Invasive Plant Species Really That Special? Invasive plants are a major environmental problem--but how abundant are they? Invasive plant species... More »

    • Virus Featured Article Virus Virus

      A virus is a microscopic organism that can replicate only inside the cells of a host organism. Most viruses are so tiny they are only observable with at least a conventional... More »

    • Jamaican dry forests Featured Article Jamaican dry forests Jamaican dry forests

      Jamaican dry forests is an ecoregion that covers a minority of the land area of the nation island of Jamaica, which ranks fifth among the Earth's islands in terms of endemic plant... More »

    • Geophony, Biophony, and Anthrophony Featured Article Geophony, Biophony, and Anthrophony Geophony, Biophony, and Anthrophony

      What do these words mean? Biophony is the melodic sound created by such organisms as frogs and birds; geophony, the composition of non-biological sounds like wind, rain and... More »

    • Flora of Napa County, California Featured Article Flora of Napa County, California Flora of Napa County, California

      Napa County is a rural county in northern California encompassing nearly 500,000 acres (200,000 hectares), about 0.5 % of the landmass of the state. It is located 25 miles (40... More »

    • Benthos Featured Article Benthos Benthos

      Benthos is one of three major ecological groups into which marine organisms are divided, the other two being the nekton and the plankton. The benthos are organisms and... More »

Recently Updated
Pliocene Last Updated on 2013-06-18 at 14:31 Editor's note: The Pliocene is the period of the geologic timescale that spans the era from approximately 5.331 to 2.588 million years ago. It preceeds the Pleistocene... More »
Great Basin shrub steppe Last Updated on 2013-06-18 at 04:23 The Great Basin shrub steppe ecoregion is situated in the most northerly of the four American deserts. Unlike the other three, which have almost exclusive ties to... More »
Tamarix control Last Updated on 2013-06-17 at 17:10 Tamarix control is a significant invasive species issue in the western USA, especially in the American southwest.  The woody plant genus Tamarix, also , also known by the... More »
Chihuahuan Desert Last Updated on 2013-06-16 at 21:48 The Chihuahuan Desert encompasses one of the most biologically diverse arid regions on Earth. This ecoregion extends from within the United States south into Mexico. This... More »
Colorado Plateau shrublands Last Updated on 2013-06-16 at 21:44   The Grand Canyon epitomizes the Colorado Plateau, an area that has been called the "land of color and canyons." The Plateau can be thought of as an... More »
Mojave Desert Last Updated on 2013-06-16 at 21:42 The Mojave Desert is the smallest of the four American deserts. While the Mojave lies between the Great Basin Shrub Steppe and the Sonoran desert, its fauna is more closely... More »
  • Articles Articles
  • Blog Blog Posts
  • Gallery Galleries
  • News News
  • Resources Resources
  • Media Videos
  • Include Content from all Sub-Sections
Type Title Author Date
Retrieving data...