NEET BIOLOGY

Detailed explanation-1: -Throughout fossil records, many species appearing in lower layers of rock disappear in higher layers of rock. Which best explains their disappearance? The species became extinct.

Detailed explanation-2: -Answer and Explanation: The most likely reason that a species might disappear from the fossil record while investigating rock layers is that it went extinct.

Detailed explanation-3: -Fossils document the existence of now-extinct species, showing that different organisms have lived on Earth during different periods of the planet’s history. They can also help scientists reconstruct the evolutionary histories of present-day species.

Detailed explanation-4: -The fossil record certainly has gaps, mostly because the conditions required to create fossils have been rare ever since life began on Earth. A very small percentage of animals that have lived and died ever became fossils. Thus, many pieces of the puzzle are missing; some will never be found.

Detailed explanation-5: -Fossils are the preserved remains or traces of animals, plants, and other organisms from the past. Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today.