Unit cell: The simplest arrangement of atoms or molecules that regularly repeat in a crystal structure
Crystal lattice: A crystal lattice is a three dimensional atomic structure for the solid phase of matter.
Characteristics of a crystal lattice include
Symmetrical and infinitely repeating arrangement of atoms
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Answer:
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Keratin is responsible for skin color. The more the melanin in the skin, the darker the skin color of the person. Collagen and keratin makes up nails and hairs. Elastin is a connective tissue that connects the epidermis and the dermis. The dermal papillae nourishes the root hairs.
Dental clinics focus on patient education to prevent disease and provide treatment options for the same procedures offered in general and (some) specialty practices. A clinic houses all dental equipment and tools in one place and is staffed by dentists, dental specialists, dental assistants, and dental hygienists.
A. driving. A single instance of a nuclear weapon would cause more pollution than a single instance of driving, but while millions of cars drive everyday, nuclear weapons are very rarely detonated. All the cars in the world contribute the most to pollution, especially because some countries still don't regulate the pollutants in exhaust.
