Answer: The frequency at which new species emerge and are lost over evolutionary time is established by the rates of speciation and extinction.
<span>The
answer to this question is electrocardiogram. Electrocardiogram or ECG is a
test that records the patient’s heartbeat and checks the electrical activity of
the patient’s heart. The electrodes that are placed on the skin of the patient
to capture the magnitude of the heart’s electrical depolarization and to check
any presence of heart muscle damage. </span>
I think it’s c correct me if I’m wrong I got it right
Answer:
B
Explanation:
because it is part of the boold to the body
