Category: biology...

• biology is a broad subject that overlaps with other scientific disciplines -- dealing with all aspects of physicochemical life, divided into botany and zoology as well as morphology (the structure of organisms)
• Biology has taught us that if you have water and energy and some organic compounds you can produce life even in the most extreme environments. Basically, life can get a foothold anywhere. This forebodes well for the possibility that life existed on Mars sometime in the past or even perhaps today. (E Weiler)
• ethology is the study of animal behavior -- including imprinting, the rapid learning process that occurs early in life
• taxonomy is the science of classifying the two million living species into groups of related organisms
• The surface of the Earth as we experience it, with its entrancing diversity and colorful warmth, is literally a product of biological activities - a creation of life.
• In the fullness of time, more than 90 percent of the world's past species have perished.
• biologists sum up life as a range of particular characteristics that all living things share: ability to use energy, take in raw materials, get rid of waste, respond to the outside world, reproduce, and evolve
• a living thing is a complex collection of chemicals, most of which contain the element carbon; throughout every second of life, these chemicals are participating in an almost baffling array of reactions
• enzymes are like chemical matchmakers that bring other chemicals together so they can react quickly to support life
• Death is essential for life. Living things evolve through reproduction so death allows existing forms of life to be replaced by ones that are better suited to the world around them. If nothing had ever died, the planet would have long ago been overrun by the first life forms that appeared.
• a human body's 50 million million cells that work together to perform different tasks

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