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Ecosystems, short for ecological systems, result from the interaction of biotic, abiotic and cultural components. Biotic and cultural components are all living things, nonhuman and human and including microscopic life, present in the ecosystem. Abiotic components are those nonliving things,…
A mutually exclusive event is one wherein two events cannot happen at the same time (e.g. getting heads and tails in a single coin toss), a mutually inclusive event allows both events to occur in a single trial (e.g. drawing…
Falcons, hawks, eagles and even owls look pretty similar at a glance. All of these birds share the same sharp, curved beaks and have exceptional eyesight and wickedly pointed talons on their feet. However, upon closer inspection falcons have several…
Rotation and revolution are terms that describe the angular motion of objects, that is, motion about a real or imaginary axis. They are often confused not only for this reason, but also because they often apply in different ways to…
In the United States and some other parts of the world, automobile speedometers provide speed in miles per hour. While this helps you keep track of your speed relative to a posted speed limit, this may not give you a…
The three primary characteristics of a circle are its circumference, diameter and radius. All circles share common properties that allow for formulas that relate these characteristics to one another. For example, the famous number pi (approximately 3.14, or a bit…
Usually, people use fractions to represent numbers smaller than one: 3/4, 2/5 and the like. But if the number on top of the fraction (the numerator) is bigger than the number on the bottom of the fraction (the denominator), the…
Solubility and miscibility are both terms used to refer to the ability of one substance to dissolve in another substance. The substance to be dissolved is called the solute, while the substance in which the solute is dissolved is called…
“Survival of the fittest” takes rather a morbid turn when you consider the idea of overproduction of offspring. Overproduction of offspring is the idea that species produce far more offspring than an environment can support because most of the juveniles…
To convert moles to molecules, what you need to know are the weight of a sample, the sum of its atomic masses from the periodic table and a constant known as Avogadro’s number. In addition to the following steps, a…
