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A raw score is a single score that is derived from a test or an observation. Cumulative percentages determine placement among a group of scores. Raw scores are also known as X values and are usually not useful by themselves. Converting raw scores into cumulative percentages allows for meaningful comparisons. For example, what if you received an 80 on an exam in your biology class? The 80 is a raw score. Since you scored at the th percentile, you did better than or the same as everyone else in the class.
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What are outside raw materials used by an organism? Ans. Raw materials used by an organism are: (a) Food, (b) Water, (c) Oxygen (in case of animal). One of the hoped-for benefits of students taking a biology course is that they will .. Organisms obtain raw materials and energy from the environment or another .
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It is responsible for absorption of sun's light by the plant. The chlorophyll pigments are photoreceptor molecules which play a key role in the photosynthesis process.

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Terms Review Questions Links References. Biology literally means "the study of life". Biology is such a broad field, covering the minute workings of chemical machines inside our cells, to broad scale concepts of ecosystems and global climate change. Biologists study intimate details of the human brain, the composition of our genes, and even the functioning of our reproductive system. Biologists recently all but completed the deciphering of the human genome, the sequence of deoxyribonucleic acid DNA bases that may determine much of our innate capabilities and predispositions to certain forms of behavior and illnesses. DNA sequences have played major roles in criminal cases O.
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