1. Classification of Living Things
... Extinction and diversification continue nonstop, and scientists are often encountering fluctuations that may affect the way an organism is classified. When classifying organisms, scientists study a wide range of features, including those visible to the naked eye, those detectable only under a microscope, and those that can be ... of organisms as well as the anatomy and function of internal organs and organ systems, such as the digestive or reproductive systems. Biochemists study and compare the molecular interactions within an organism that enable it to grow, make and store energy, and r...
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