NEET BIOLOGY

GENETICS AND EVOLUTION

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The fossil record help scientists
A
better understand the kind of organism that lived in the past
B
better understand how the environment has changed over time
C
better understand how organisms have evolved over time
D
all of the above
Explanation: 

Detailed explanation-1: -The fossil record helps paleontologists, archaeologists, and geologists place important events and species in the appropriate geologic era. It is based on the Law of Superposition which states that in undisturbed rock sequences the bottom layers are older than the top layers.

Detailed explanation-2: -Fossils provide important evidence for evolution and the adaptation of plants and animals to their environments. Fossil evidence provides a record of how creatures evolved and how this process can be represented by a ‘tree of life’, showing that all species are related to each other.

Detailed explanation-3: -Paleontologists want to know the history of evolution and extinction of fossil species through geologic time. To do that, they try to study all of the fossils that have been preserved in sedimentary rocks. That’s called the fossil record.

Detailed explanation-4: -fossil record, history of life as documented by fossils, the remains or imprints of organisms from earlier geological periods preserved in sedimentary rock.

Detailed explanation-5: -All of the fossils collected over time and arranged in chronological order are known as the fossil record. The fossil record provides evidence that past life existed and how some living things changed over long periods of time (evolved), allowing them to survive changing environments.

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