The signal would be: prices.
When the prices of a certain product is high, it would give signals to the seller to increase the production of that product.
the prices also determine how much material and type of production technique that the sellers can afford to use.
Helen Keller was the first deaf-blind person to earn a BA degree, she was a fairly prominent figure of the Women's Suffrage and Labor Rights movements, she's one of the most famous deaf people in living history thanks to her many accomplishments despite that particular shortcoming in her lifetime, helped to found the ACLU... these are just a start, but the list goes on. I hope this is at least enough info to help you start, if nothing else.
Answer:
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Explanation:
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Answer: Biological perspective
Explanation: Biological perspective is a way of looking at psychological issues by studying the physical basis for animal and human behavior. Today, this perspective is known as biological psychology. Sometimes referred to as biopsychology or physiological psychology. Researchers who take a biological perspective on psychology might look at how genetics influence different behaviors or how damage to specific areas of the brain influence behavior and personality. Things like the nervous system, genetics, the brain, the immune system, and the endocrine systems are just a few of the subjects that interest biological psychologists.
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