It provides the reader with your topic and give them a central idea of your writing.
So they can breatheso they can breatheso they can breathe<span>so they can breathe
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7. Succession, 6. Extinction, 5. Niche, 3. Ecosystem, 2. Population, 1. Habitat, 4. Environment, 8. Community
Collagen is the structural protein found in skin and connective tissue. This protein is the most abundant protein, that makes up one-third of the protein in the human body. The function of this protein in the skin is to give the skin strength and elasticity, and to replace dead skin cells. In connective tissues it s<span>upports structures and anchor cells to each other.</span>
"The visible colors from shortest to longest wavelength are: violet, blue, green, yellow, orange, and red"
C) Violet is the answer then.
