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.
The circulatory system is the system in the body that is  responsible for the transportation of materials throughout the  body. Red blood cells move through the circulatory â¦ system deliver  oxygen and water to the cells in the body and takes away waste  products.ells use the circulatory system to help get rid of wastes. Diffusion occurs at the tissues, allowing for nutrients and oxygen to enter the cells, and for carbon dioxide and o â¦ ther wastes to be removes from the cells.