Suppose you have two minerals. one mineral fractures into rough pieces, and a second mineral breaks into pieces with smooth surfaces. what does this indicate? a. the second mineral is older than the first mineral. b. the second mineral is harder than the first mineral. c. the two minerals have a different arrangement of their atoms. d. only the second mineral has crystalline structure me

the answer is c.

by: nicholas dooley

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.