Answer:
A hypothesis is a tentative, testable answer to a scientific question. Once a scientist has a scientific question she is interested in, the scientist reads up to find out what is already known on the topic. ... A hypothesis leads to one or more predictions that can be tested by experimenting
Explanation:
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Fun fact
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Stress is typically associated with elevated levels of epinephrine and cortisol; some physiologists now define stress as any situation that raises cortisol levels.
<h3>What are glucocorticoids?</h3>
Glucocorticoids are part of the innate immune system's feedback loop, which diminishes certain facets of immune function, such as inflammation.
As a result, in medicine, they are used to treat diseases caused by an overactive immune system, such as allergies, asthma, autoimmune diseases, and sepsis.
Stress is typically associated with elevated epinephrine and cortisol levels; however, some physiologists now describes stress as any situation that raises cortisol levels.
Thus, the answer is cortisol and epinephrine.
For more details regarding glucocorticoids, visit:
brainly.com/question/13639832
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Answer:
<em>The correct option is A) they are all classified as pure substances.</em>
Explanation:
Pure air is a term which is used to described air which is free from pollutants or other contaminants. All the substance from which air is made are considered as pure substances. Hence, option A is correct.
Other options, like option C, is false because the components of the air are no chemically bonded to one another. They exist freely. Options D is false because not all the components of air can be classified as an element. For example, carbon dioxide is not an element.