Biology
epub |eng | | Author:Christiane Nusslein-Volhard

Cell Death. When the divisions of cells in a tissue are completed, a stop signal tells the cell to rest. The stop signal has to be inactivated by a growth ...
( Category: Developmental Biology March 22,2020 )
epub |eng | 2020-01-20 | Author:Philip V. Mladenov

Sexual reproduction in corals Reef-building corals can disperse from the parent colony and colonize new habitats through sexual reproduction. Most species of coral are hermaphroditic—able to produce both eggs and ...
( Category: Marine Biology March 22,2020 )
epub, azw3 |eng | 2020-03-04 | Author:Matthew Cobb

* Look it up. It’s exactly the right word. † ‘Engram’, meaning the physical trace of a memory, was coined in German in 1904 by the zoologist Richard Semon, and ...
( Category: Biology March 22,2020 )
epub |eng | | Author:R. Bruce Martin, David B. Burr, Neil A. Sharkey & David P. Fyhrie

5.3.3 Types of Lubrication There are several different mechanisms by which lubrication can be achieved. Each of the following mechanisms is thought to play a role in the lubrication of ...
( Category: Molecular Biology March 22,2020 )
epub, azw3 |eng | 2016-02-03 | Author:Martin Stevens [Stevens, Martin]

Fig. 42. The colourful wings and eyespots of the peacock butterfly (Aglais io). Experiments have shown that their startle displays and eyespots are very effective in deterring avian attacks. Image ...
( Category: Botany March 22,2020 )
epub |eng | 2019-05-15 | Author:dave foreman

Massive, powerful, like some creation of Darth Vader, Glen Canyon Dam squats in the canyon of the Colorado River on the Arizona-Utah border and backs the cold, dead waters of ...
( Category: Environmentalists & Naturalists March 22,2020 )
epub |eng | | Author:Michael H. Herzog & Gregory Francis & Aaron Clarke

Just as in the t-test, a criterion is chosen for statistical significance to set the Type I error rate to a desired rate (e.g., α = 0.05). When F exceeds ...
( Category: Animal Behavior & Communication March 22,2020 )
epub |eng | 1988-02-15 | Author:David H. Hubel [Hubel, David H.]

In the two figures on the previous page, a typical experiment is illustrated for part of a close-to-horizontal penetration through area 17, in which 23 cells were recorded. The eyes ...
( Category: Neurology March 21,2020 )
epub |eng | | Author:Darren G. Rumbold & Curtis D. Pollman & Donald M. Axelrad

Ogden JC (2005) Everglades ridge and slough conceptual ecological model. Wetlands 25:810–831 Osborne TZ, Newman S, Reddy KR (2008) Spatial distribution of total sulfur in the soils of the northern ...
( Category: Marine Biology March 21,2020 )
epub |eng | | Author:Newsom, Jason T. [Jason T. Newsom]

Unequally Spaced Observations Another deviation from the simple, ideal time metric is when observations are not equally spaced. In practice, this is likely to be true in many data sets, ...
( Category: Statistics March 21,2020 )
epub |eng | 2015-03-14 | Author:Gregory, Richard L.

Physiological changes Recent experiments have been aimed at whether physiological ‘feature detectors’ (Figure 4.7) are simply given innately, or whether early experience affects them. Kittens have been reared in environments ...
( Category: Neurology March 21,2020 )
epub |eng | 1988-11-30 | Author:Peter Nabokov & Robert Easton [Nabokov, Peter]

Upon completion of the building a participating Kwakiutl headman announced to his host: “The great house is finished for all the different tribes. My tribe has treated you as a ...
( Category: Native American Studies March 21,2020 )
epub |eng | 2015-03-20 | Author:Alice Green Callahan

UNDERSTANDING VACCINE RISKS Although the benefits of vaccines are tremendous, they do carry some risk. But then again, nothing we do is 100% safe. Every time we feed our children, ...
( Category: Pregnancy & Childbirth March 21,2020 )
epub |eng | | Author:Gerard L. Hasenhuettl & Richard W. Hartel

Kato N, Shibasaki I (1975) Comparison of antimicrobial activities of fatty acids and their esters. J Ferment Technol 53:793–801 Kieseker FG (1983) Recombined dairy products. CSIRO Food Res Quarterly 43:25–37 ...
( Category: Microbiology March 21,2020 )
epub |eng | | Author:George Mias

As you can see the DNA is arranged in a helix, with a sugar-phosphate outer backbone and pairs of nucleotides in the inner region. These nucleotides are called adenine (A), ...
( Category: Molecular Biology March 21,2020 )