Skin serves as a protective barrier, a way to sense the world, and a layer that keeps nutrients and water inside the body. Four types of cells make up the skin, and they are produced mainly in the epidermis near the basement membrane.
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<em>The finches would beaks we're colored differently, providing camouflage within their unique environment.</em>
Option (d);
<u>EXPLANATION: </u>
Galápagos Islands are near the South America coast. Finches migrated from there to these islands. Darwin observed that finches were different on every island he visited. He observed that finches had different colored beaks.
Along with the difference in color, he also observed that the available food was different on different islands.Seeds were varying in sizes in different islands. So, finches adapted to their respective environments for different kinds of food available and their survival became easy.
The Himalayan Rabbit sports black fur on its extremities. This is due to an ancestral trait; the Himalayan Rabbits carry “temperature sensitive tyrosinase genes” which controls fur pigmentation. The rabbit’s ancestors, which would have had to survive in the cold Himalayan environment would have, through natural selection, favored a gene that allows for a darker pigmentation. Through evolution the Himalayan Rabbit passed down the genotype for a melanin producing gene, which activates in low temperatures, changing the individual rabbit’s phenotype to fit the climate.
So your answer is choice 1
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~xox Melis
