An event or situation that causes stress is called a. A ringing. alarm clock is one example of a stressor. Other stressors in your life may. be a difficult homework assignment or an argument with a friend.
Answer: The human circulatory system has a complex network of blood vessels that reach all parts of the body. This extensive network supplies the cells, tissues, and organs with oxygen and nutrients, and removes carbon dioxide and waste compounds.
Explanation:
Answer:
Explanation:
the first one is 1 second is 3 third is 4 and the last one is 2
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