As a scientist, you have been studying giraffes and the ways they have evolved. In preparation to speak at a conference, you will be focusing on their physical changes over time, and you would like to include information about their height and build. What role did natural selection play in the evolution of giraffe necks?

As time progressed, to reach the tops of trees to eat their leaves, the giraffe's necks grew longer. Those without long necks could not reach the leaves and began to die off. This allowed only giraffes with long necks to survive. Eventually, their necks grew to the length they are now.

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The accepted theory of giraffe evolution is that the longest-neck giraffes have been passed on to their genes by natural selection and the animal that we see now takes millions of years.

Explanation:

what in the weirdo : o

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.