Answer:
The human heart contains an estimated 2–3 billion cardiac muscle cells, but these account for less than a third of the total cell number in the heart.
Explanation:
Interpersonal skills are particularly important in customer-facing roles. You will be expected to interact with others daily, often in a problem-solving role. Communicating clearly and active listening are key customer service skills, whether you are speaking with customers in person or on the phone.
Not my own work....From Google
But
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Answer:
C . Ritalin
Explanation:
Ritalin with other types of stimulants causes overactive eye movement. Ritalin belongs to a group of stimulants called Methylphenidate not only this but others such as cocaine,nicotine etc
