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| Biology is the study of life. |
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| DNA is short for Deoxyribonucleic acid which is a nucleic acid that contains the genetic instructions used in the development and functioning of all known living organisms |
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| Stimulus is a signal which an organism responds to. |
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| Sexual Reproduction is when two cells unite to form the first ccell of a new organism. |
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| Asexual Reproduction is where a single organism produces offspring identical to itself. |
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| Homeostasis is whern all living oranisms expend energy to keep conditions inside their cells within certain limits. |
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| Metabolism is the combination of chemical reactions through which an organism builds up or breaks down materials. |
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| Biosphere is when all forms of life on Earth are connected, a living planet. |
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