Evolution has led giraffes to have very long necks. Trees in the savannah have less leaves on bottom branches because of other animals. For the giraffe to survive, their necks slowly became longer as they could eat more leaves from upper/top branches. If they had not evolved longer necks, they would not exist today.
A glacier is a large, slowly moving mass of thickened ice that can develop anywhere. It develops over a long period of time.
Of all the statements given above, the true statement is that- Most glaciers are found in the mountainous areas near the equator.
This is because very low temperatures occur at high altitudes. Glaciers are found in the high mountains of South America and Africa.
Aerobic respiration is a process that requires oxygen to produce a net of 36 molecules of ATP for every one molecule of glucose.
Anaerobic respiration is a process that does NOT require oxygen and produces a net of 2 molecules of ATP for every one molecule of glucose.
<span>Struggle for existence and survival of the fittest principles of evolution is represented in this example</span>