The principal components of the plasma membrane are lipids (phospholipid and cholesterol) , proteins , and carbohydrates groups that are attached to some of The lipids are proteins.
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Proteins do most of the work in cells are are required for the function, regulation, and structure of the body's organs and tissues. Essentially, a cell makes protein for the body to function.
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An extensive tract of level or rolling land, destitute of trees, covered with coarse grass, and usually characterised by a deep, fertile soil. They abound throughout the Mississippi valley, between the Alleghanies and the rocky mountains. From the forests and the prairies, From the great lakes of the northland.
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C. It must be testable.
Explanation:
A hypothesis is a statement that suggests an explanation for a natural occurrence that is based on an observation. A hypothesis is only acceptable if it is verifiable or falsifiable, so this means that a hypothesis has to be testable. The scientific method that will ensue will be built based on the hypothesis. For example, the experimental design will be planned to determine whether the hypothesis holds or not.
The movement of energy around an ecosystem by biotic and abiotic means. Such as food chains and food webs.