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Mar 13, 2021 · This glossary contains many of the terms in A-level biology, in addition to many terms which are well beyond the A-level syllabus. You really don’t need to know all of these words, but including some words which aren’t in A-level biology in your essays can help you get higher marks.
Jan 8, 2020 · When our awareness intensifies and our senses open up there’s a sense of returning home – to meaning. So what is the meaning of life? Put simply, the meaning of life is life itself.
Sep 26, 2016 · This philosophical piece by Wentao Ma is a discussion of the definition of life. Ma covers well-trodden territory, arguing primarily for a Darwinian definition of life.
- Wentao Ma
- mwt@whu.edu.cn
- 2016
- Lisa Bartee, Walter Shriner, Catherine Creech
- 2017
- Order. Organisms are highly organized, coordinated structures that consist of one or more cells. Even very simple, single-celled organisms are remarkably complex: inside each cell, atoms make up molecules; these in turn make up cell organelles and other cellular inclusions.
- Sensitivity or Response to Stimuli. Organisms respond to diverse stimuli. For example, plants can bend toward a source of light, climb on fences and walls, or respond to touch (Figure 2).
- Reproduction. Single-celled organisms reproduce by first duplicating their DNA, and then dividing it equally as the cell prepares to divide to form two new cells.
- Growth and Development. All living things increase in size and/or change over their lifespan. For example, a human grows from a baby into an adult and goes through developmental processes such as puberty.
Nov 10, 2010 · For example, the man in the street, if asked about life on other planets, will often picture life of a distinctly human sort. Many individuals believe that insects are not animals, because by “animals” they mean “mammals.”. Man tends to define in terms of the familiar.
- Carl Sagan
- 2010
Nov 30, 2021 · Open a textbook in biology and you’ll find a purported definition of life, usually in the form of a list of characteristics that apply to organisms, their parts, their interactions, or their history.
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Feb 20, 2024 · Defining life is an arduous task that has puzzled philosophers and scientists for centuries. Yet biology suffers from a lack of clear definition, putting biologists in a paradoxical situation where one can describe at the atomic level complex objects that remain globally poorly defined.
