Biotic means living organisms. Animals, plants, microorganisms, and humans are biotic components. Living organisms have specific characteristics. Touch-me-not plants (Mimosa pudica) have characteristic such as a pink flower, thorny stems, and leaves that close when they are touched. Another example is a cat that has soft and brownish fur. Specific conditions or characteristic that belong to living organisms are natural phenomena of material of biotic components.
All living organisms do activities, such as growing, moving, reproducing, responding to stimuli, and excreting. Those activities are the natural phenomena of occurrence of biotic objects.
Let's take a look at the following examples. A striped bee is flying around a red rose with thorny stems to collect honey.
In this event, which are the biotic components? Which one is the natural phenomena of material and which one is the natural phenomena of occurrence? The striped bee and red rose are the biotic components; the stripe pattern of the bee, the red color and thorn of the rose, are the natural phenomena of material biotic components; while flying and collecting honey are the natural phenomena of occurrence of the biotic components.
Another example: Ali has a healthy body; he is sweating after exercising. The biotic component is Ali; his healthy body is the natural phenomenon of material of the biotic components; while sweating is te natural phenomenon of occurrence of the biotic components.
Pay attention to the following example. A hibiscus with dangling pistil and stamens, start to blossom in the morning. :)
Monday, March 21, 2011
Tuesday, December 28, 2010
Thursday, December 16, 2010
All About Cat
The cat (Felis catus), also known as the domestic cat or housecat to distinguish it from other felines and felids, is a small furry domesticated carnivorous mammal that is valued by humans for its companionship and for its ability to hunt vermin and household pests. Cats have been associated with humans for at least 9,500 years, and are currently the most popular pet in the world. Owing to their close association with humans, cats are now found almost everywhere on Earth.
Cats are similar in anatomy to the other felids, with strong, flexible bodies, quick reflexes, sharp retractable claws, and teeth adapted to killing small prey. As nocturnal predators, cats use their acute hearing and ability to see in near darkness to locate prey. Not only can cats hear sounds too faint for human ears, they can also hear sounds higher in frequency than humans can perceive. This is because cats' usual prey (particularly rodents such as mice) make high frequency noises, so cats' hearing has evolved to pinpoint these faint high-pitched sounds. Cats rely more on smell than taste, and have a vastly better sense of smell than humans.
Despite being solitary hunters, cats are a social species and use a variety of vocalizations, pheromones and types of body language for communication. These include meowing, purring, trilling, hissing, growling, and grunting.
Cats have a rapid breeding rate. Under controlled breeding, they can be bred and shown as registered pedigree pets, a hobby known as cat fancy. Failure to control the breeding of pet cats by spaying and neutering and the abandonment of former household pets has resulted in problems caused by large numbers of feral cats worldwide, with a population of up to 60 million of these animals in the United States alone.
As The New York Times wrote in 2007, "Until recently the cat was commonly believed to have been domesticated in ancient Egypt, where it was a cult animal", but a study that year revealed that the lines of descent of all house cats probably run through as few as five self-domesticating African Wildcats (Felis silvestris lybica) circa 8000 BC, in the Near East. The earliest direct evidence of cat domestication is a kitten that was buried alongside a human 9,500 years ago in Cyprus.
Source: http://en.wikipedia.org/wiki/Cat with little alteration
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