Question

Which of the following would NOT be considered an adaptation?

Group of answer choices

large sinuses in cold-adapted Neanderthals, helpful for moisturizing air prior to its entry into the lungs

the overall skeletal complement (i.e., number and kinds of bones) seen in humans, which is similar to that seen in all mammals

elevated red blood cell counts in some high altitude populations

skin pigmentation in humans

Answer 1

ANSWER :

The presence of overall skeletal complement (number and kinds of bones) that seen in the human beings are morphologically similar to all the other mammals, which is an example of phylogenetic relationship. However, some necessary changes in the physiology and anatomical structures in the individuals of specific populations to cope with variations in the external environment are known as adaptations. Example :- Elevated RBCs count in the blood of individuals who live on high alititudes. Hence option (2) is the correct answer choice.