Causes of famine. Famine can be caused by many different reasons, some, like floods, droughts, and earthquakes are natural, and others, like lack of food and shortage in food distribution to specific parts of a region, humans are responsible for.
Transportation: The cardiovascular system transports blood to almost all of the bodyâs tissues. The blood delivers essential nutrients and oxygen and removes wastes and carbon dioxide to be processed or removed from the body. Hormones are transported throughout the body via the bloodâs liquid plasma.
blood (functions) It carries water, oxygen food and secretions to all cells of the body. It carries away carbon dioxide and waste products to be eliminated through the lungs, skin, kidneys, and large intestines. It helps to equalize the body's temperature, thus protecting the body from extreme heat and cold.