Answer: red blood cells
Explanation:
Hemoglobin, iron-containing protein in the blood of many animals—in the red blood cells (erythrocytes) of vertebrates—that transports oxygen to the tissues
<em>Hi,</em>
Answer:
<em>blood pressure is higher in men than in women at similar ages. After menopause, however, blood pressure increases in women to levels even higher than in men.</em>
<em />
Answer:
The correct answer is a. True
Explanation:
The resting heart rate for a normal adult is between 50 to 90 beats per minute. Resting heartbeat below 50 is possible in persons who are very good athletes. A more cardiovascular fitness is seen in good athlete and they can have a resting heart rate near to 40.
If a normal resting heart rate falls from 60 that condition is known as bradycardia. Mostly old people are more prone to it. Tachycardia is a medical condition in which a person's resting heartbeat reaches above 100.
Both the condition bradycardia and tachycardia shows the problem related to heart and require medical attention.
