Why do the cells in all living things need energy?
a.
to fuel their chemical reactions
b.
to them decompose
c.
to communicate with other cells
d.
so they can block sunlight

a chain link fence because there so tiny even my albino donkey can't get out

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.