Answer:
Might be a lack of sleep, try taking care of your self and take medicine by doctor.
Explanation:
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
Answer:
The ventricles are the lower chambers of the heart. There are various grooves in the epicardium; these are the sulcuses. The anterior interventricular sulcus is located on the ventral side of the heart and separates the right and left ventricles.
Well Mitochondria are the structures within cells that produce energy. An example of mitochondria is what regulates metabolism in human cells.
