The appearance of domesticated plants is taken to be the end of one great cultural period and the beginning of another. The period that ENDS with the beginning of domestication is called the

it takes hundreds of years to become stable.

if you have another question lmk.

b a mature ovary of a plant.

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.