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

wegner's theory did not explain how the continents could move

explanation:

idk im sorry.

sorry to break it to ya but no one can answer your question it's just

jk but i am serious about the part that most people cant answer it beacuse you did not mention the section you are talking about. but it would if you added some detail and were a bit more specific.

answer: the correct option is d. enzyme

lactase and carbonic anhydrase are the examples of enzymes.

lactase is an enzyme, which is present in the small intestine of mammals. it in the digestion of the disaccharide, lactose ( milk sugar) by converting it into two monosachharide, which are glucose and galactose.

carbonic anhydrase is present in the red blood cells. this enzyme plays significant role in the transport of co₂. it in the conversion of co₂ and h₂o into carbonic acid, which is then dissociated into bicarbonate ions and hydrogen ions.