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Which is not an element?

Atoms in which th number of electrons does not equal the number of protons are known as

Which of the following statements is not true about a hypothesis?

Immunoglobulins are antibodies that bind with antigens.

I did the following to prepare for the exam:  (Be honest! This will not affect your score if you provide an answer.)

Preventing the disease in people with a risk factor (like like getting people to stop smoking to prevent lung caner) is what kind of prevention?

An abnormal pulse rate is an example of a subjective measure.

Metabolism 

Adhesion is

Which of the following pH numbers is considered acidic?