Search results
Results from the WOW.Com Content Network
The vibrating microtome operates by cutting using a vibrating blade, allowing the resultant cut to be made with less pressure than would be required for a stationary blade. The vibrating microtome is usually used for difficult biological samples. [18] The cut thickness is usually around 30–500 μm for live tissue and 10–500 μm for fixed ...
The pygmy mammoth is an example of insular dwarfism, a case of Foster's rule, its unusually small body size an adaptation to the limited resources of its island home.. A biological rule or biological law is a generalized law, principle, or rule of thumb formulated to describe patterns observed in living organisms.
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...
Scientific laws or laws of science are statements, based on repeated experiments or observations, that describe or predict a range of natural phenomena. [1] The term law has diverse usage in many cases (approximate, accurate, broad, or narrow) across all fields of natural science (physics, chemistry, astronomy, geoscience, biology).
A variety of rulers A carpenter's rule Retractable flexible rule or tape measure A closeup of a steel ruler A ruler in combination with a letter scale. A ruler, sometimes called a rule, scale or a line gauge or metre/meter stick, is an instrument used to make length measurements, whereby a length is read from a series of markings called "rules" along an edge of the device. [1]
Haldane's rule A rule formulated by J.B.S. Haldane which states that if one sex of the hybrid offspring resulting from a cross between two incipient species is inviable or sterile, that sex is more likely to be the heterogametic sex (i.e. the one with two different sex chromosomes). [19] haplodiploidy
Tools. Tools. move to sidebar hide. Actions Read; Edit; View history; General ... Steel rule may prefer to: Steel rule die, a die made using a material called die steel;
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more