Valence is the number of electrons an atom must gain or lose in order to complete its outer shell or have a stable octet in its outer shell.
Answer:
The answer is true.
Explanation:
The meaning of health and illnes was always dependent on historical and cultural contexts throughout human history. This was the case especially for psychological illnesses and certain diseases that alter the physical appearence of people. Even in today's world where science is so advanced and the world is interconnected through an immense web of communication, these stigmas for mental illnesses and bloodborne diseases, especially for HIV and alike, continue to exist in parts of the world.
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Method of species identification that uses a short section of DNA from a specific gene or genes
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B, the others are not testable under lab conditions.
Answer:
to anchor the plant to the ground. equalizing osmosis in the plant and feeding water up through the roots.
