The heart is a muscular organ in most animals, which pumps blood through the blood vessels of the circulatory system. The pumped blood carries oxygen and nutrients to the body, while carrying metabolic waste such as carbon dioxide to the lungs.
B. is the answer. hope that helps. :)
umm one would be to chew gum two would be hide the cigarettes on said person or to put them in a spot where they can not reach and three is to get rid of then entirely
Conduct research and experiments to improve the productivity and sustainability of field crops and farm animals
