In which system does the heart work to move blood throughout the body? A. digestive system
B. muscular system
C. respiratory system
D. Cardiovascular system

aliens are not real, the myth was created about 700 years ago because people found markings in the field of their crops. also, no there were no aliens on the moon.

hope this ! give brainliest!

answer; membership group;

wheres the question? imao

answerthomas malthus wrote an essay on the principle of population;

hope this ,(malthus)