Because the heart has a very important task for the body, it follows a cycle called the cardiac cycle. The intervening pauses allows the blood to be emptied out completely from the atria and transferred to the ventricles before the ventricles finally pumps out the blood.
has a whippy tail called a flagellum that allows it to move through the water. The euglena is different than other protozoans because it has chlorophyll in it, the substance that plants contain to make their own food. The euglena is then able to make its own food like a plant when it is in the sunlight.
I would believe that sugars and starches would have the most caloric value.
