In darwin's theory of evolution, adaptation means that all organisms adapt to their environment.
true false

True

Explanation:

As per Darwin’s theory, all species adapt to the environment in which they live. All organism adapt their physical traits and habits under the influence of their surrounding environment. For example – in England during the industrial revolution, the environment got polluted due to which the insects with light colored wings adapted to reproduce dark color winged offspring so that they are not identified by its predators.

Hence, the given statement is true.

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.