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Posted by / 13-Oct-2020 11:51

Proteins fulfill a variety of biochemical roles including strengthening of connective tissues, muscles, and membranes and regulation of metabolic activities and immunological functions.

Finally, the core ideas in the life sciences culminate with the principle that evolution can explain how the diversity that is observed within species has led to the diversity of life across species through a process of descent with adaptive modification.This idea explains the mechanisms of genetic inheritance and describes the environmental and genetic causes of gene mutation and the alteration of gene expression.The fourth core idea, LS4: Biological Evolution: Unity and Diversity, explores “changes in the traits of populations of organisms over time” [1] and the factors that account for species’ unity and diversity alike.The first core idea hinges on the unifying principle that cells are the basic unit of life.The second core idea, LS2: Ecosystems: Interactions, Energy, and Dynamics, explores organisms’ interactions with each other and their physical environment.

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