Question

what is meant adaptation in animals? Give two examples.

Answer 1

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An adaptation is a physical or behavioral characteristic that has developed to allow an organism to better survive in its environment. Adaptations are the result of evolution and may occur when a gene mutates, or changes by accident. That mutation causes the organism to better survive and reproduce, and it passes on that trait to its offspring. It can take many generations to develop an adaptation.

Examples of adaptation

Physiological adaptation. People who visit or live at high altitudes undergo physiological changes (adaptations) to adjust to the low-oxygen environment. Travelers to these areas commonly experience hypoxia, a condition of low oxygen in the blood. To compensate for the temporary drop in oxygen, vacationers' bodies speed up the oxygenation process: they breathe at a faster rate, their hearts speed up and pump more strongly to send more blood throughout the body, and they produce more red blood cells to carry oxygen to body tissues. Over a longer period, as the body adjusts to the change in altitude, the heart output and ventilation rate return to normal levels, but the red blood cell count continues to climb. The most famous of all high-altitude peoples are the Sherpas of Nepal, whose climbing feats offer a stunning example of evolved adaptation.


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Answer 2

Hey mate here's your answer
PLANTS AND ANIMALS USUALLY HAVE FEATURES TO LIVE IN A PARTICULAR TYPE OF HABITAT. THESE ARE KNOWN AS ADAPTATIONS
EXAMPLE - THE GILLS OF A FISH IS AN ADAPTATION THAT HELPS IT TO LIVE IN WATER.
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