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The domestic dog (Canis lupus familiaris)[2][3] is a subspecies of the gray wolf (Canis lupus), a member of the Canidae family of the mammalian order Carnivora. The term "domestic dog" is generally used for both domesticated and feral varieties. The dog has been the first animal to be domesticated[4] and has been the most widely kept working, hunting, and pet animal in human history. The word "dog" may also mean the male of a canine species,[5] as opposed to the word "bitch" for the female of the species.
MtDNA evidence shows an evolutionary split between the modern dog's lineage and the modern wolf's lineage around 100,000 years ago but, as of 2013[update], the oldest fossil specimens genetically linked to the modern dog's lineage date to approximately 33,000-36,000 years ago.[4][6] Dogs' value to early human hunter-gatherers led to them quickly becoming ubiquitous across world cultures. Dogs perform many roles for people, such as hunting, herding, pulling loads, protection, assisting police and military, companionship, and, more recently, aiding ...
(BSE) is a relatively new disease found primarily in cattle. This disease of the bovine breed was first seen in the United Kingdom in November 1986 by histopathological examination of affected brains (Kimberlin, 1993) . From the first discovery in 1986 to 1990 this disease developed into a large-scale epidemic in most of the United Kingdom, with...
Purpose: In this lab we will observe the products of of potassium perchlorate (KClO4). We will then predict from our results the correct chemical reaction equation. Procedure: 1. Weigh out about 4.0g of KClO4 in a test tube. Record the accurate weight below. Product Weight Before Weight After Mass of Test tube + KClO4 41.5g 39.8g Mass of Test t...
This topic was chosen because Ebola is a relentless killer. Ebola isn't publicized very much so it seems to be a wise topic to explore. This way others may be informed of one of the world's most powerful viruses. The purpose of this paper is to further educate all those interested in the powerful effects of the in its many forms. I. Introductor...
According to the American Association of Premature Infants (AAPI), over 400,000 babies are born prematurely or at a low birth weight. As a result of being born early they are more likely to require high-technology intensive and specialized care in the hospital and follow-up care as infants and children. As a result, many have chronic medical proble...
Black Light. What is it? It is a portion of the Ultra-Violet Spectrum that is invisible to our eyes. We can not distinguish it. However, when this radiation impinges on certain materials visible light is emitted and this is known as "fluorescence." Fluorescence is visible to the human eye, in that it makes an object appear to "glow in the dark...
Submitted to: Ms.Delgado GEOGRAPHY OUTLINE 1. a.WHAT IS AN AVALANCHE OR LANDSLIDE? b.EXACTLY HOW DOES AN AVALANCHES OCCUR 2. a.I TALK A LITTLE ABOUT PAST AVALANCHES b.PAST DEATHS FROM AVALANCHES 3. a.CONCLUSION CLOSING OF MY REPORT What is an avalanche? , well it's a large mass of snow and ic...
may be created by substituting some or all of the hydrogen of a phosphoric acid by metals. Depending on the number of hydrogen atoms that are replaced, the resulting compound is described as a primary, secondary or tertiary phosphate. Primary and secondary contain hydrogen and are acid salts. Secondary and tertiary phosphates, with the exception o...
Progress in the pharmacological, medical and biological sciences involves experimentation on all living species, including animals and humans. The effectiveness of medications investigative procedures and treatments must at some point be tested on animals and human beings. Although tests are conducted much more frequently on lab animals, especiall...
The Branta sandvicensis, or looks similar to the Canada Goose except only the face, cap, and hindneck are black; and Nene have buff- colored cheeks. The males and female have the same plumage. The feet of this goose are not completely webbed like the other geese. Lots of calls have been described but the most common call is very similar to th...
Most of the world's electricity is generated by either thermal or hydroelectric power plants. Thermal power plants use fuel to boil water which makes steam. The steam turns turbines that generate electricity. Hydroelectric power plants use the great force of rushing water from a dam or a waterfall to turn the turbines. The majority of thermal po...
The effect of drugs can be harmful to the body. They can damage nerves at are use for thinking. According to the "Nation Institutes of Health"(NIH), is one of the most popular used drugs in America ranking third after tobacco and alcohol. Marijuana (the most common form used in America), is made of the dried leaves and flowers of the sativa plan...
In this report I will give a history on the development of . I will cover some of the most important dates in the development of atomic theory. An atom was first thought of by the Ancient Greeks who believed that matter was made of smaller particles called elements. The name they gave to these particles was the atom. In 1776 the man known as "T...
Background: At the beginning of human history, we had to satisfy our energy needs (for food, heat and movement) by using our own muscle power and gathering or hunting naturally available plants, animals and wood. Each stage in the evolution of human society (the development of farming, domestication of animals, harnessing of wind and water power) i...
There are many models which try to explain how memory works. Nevertheless, we do not know exactly how memory works. One of the most questionable models of memory is the one which assumes that every experience a person has had is 'recorded' in memory and that some of these memories are of traumatic events too terrible to want to remember. These terr...
