A mammoth carving, designed out of a horse's shoulder blade, was found in waters covering the ancient Bering Strait and land bridge. A 0.500 gram piece of this bone was observed to undergo 1,187 carbon-14
decays in a 1 hour period. A 0.500 gram piece of bone from a modern source underwent 7,251 carbon-14
decays in the same period. Approximately how old is this bone carving?
O A. 1,200 years old
OB. 5,730 years old
OC. 7,250 years old
OD. 15,000 years old

This is one of the five kingdoms in the older biological succession. organisms in this kingdom are prokaryotic.

What is a difference between systemic and pulmonary circulation? a. systemic circulation carries oxygenated blood to the lungs and pulmonary circulation carries deoxygenated blood to the body. b. systemic circulation carries deoxygenated blood to the lungs and pulmonary circulation carries oxygenated blood to the body. c. systemic circulation carries deoxygenated blood to the body and pulmonary circulation carries oxygenated blood to the lungs. d. systemic circulation carries oxygenated blood to the body and pulmonary circulation carries deoxygenated blood to the lungs.

Injuries in the environment are a result of