<span>The heart is a specialized muscle within the body that is responsible for circulating oxygen within the internal organs to maintain the body’s homeostasis. Cardiac muscle tissues are made up of cardiac muscles cells or muscle fibers that give the distinct characteristic and function of the heart. The fibers when seen through a microscope, are striated or striped. They are seen as light and dark bands because they interlock each other to form the walls and perform many muscular contractions of the heart. <span>
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The system of organs responsible for getting food into and out of the body and for making use of food to keep the body healthy. The digestive system includes the salivary glands, mouth, esophagus, stomach, liver, gallbladder, pancreas, small intestine, colon, and rectum.
Answer: Its should be B
Explanation:
LEAVE A BRAINLIEST IF CORRECT
