Evidence unearthed by scientists supports the conclusion that about 65 million years ago a large object from space crashed into an area north of what is now the Yucatan Peninsula of Mexico. The impact threw huge amounts of dust into the atmosphere which spread across Earth's
sky, blocking the sunlight. At about the same time
dinosaurs, and many other forms of life in all regions of Earth, became extinct.
Describe how this event could have caused herbivorous and carnivorous organisms to become extinct.

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.