Concept explainers
Life forms throughout Earth’s past have occurred in a definite order. This is called the principle of
(a) fossil assemblage.
(b) faunal succession.
(c) conformable fossils.
(d) fossil determination.
The correct option for the statement “Life forms throughout Earth’s past have occurred in a definite order. This is called the principle of”.
Answer to Problem 2RAT
The correct option for the statement “Life forms throughout Earth’s past have occurred in a definite order. This is called the principle of” is option (b).
Explanation of Solution
The principle of faunal succession is related to the study of sedimentary rocks. Fossil organism present in the definite order, some species becomes extinct and some new appear with time. This change in fossil organisms makes rock older that helps us to know about the age of the rock.
Fossils present on the rock are found in a definite order. This order depends on the correlation of rock layers. Thus we can say that the Earth’s past occurred in a definite order. We can study this past with the information on fossils and rocks present inside it.
Conclusion:
Therefore, the correct option for the statement “Life forms throughout Earth’s past have occurred in a definite order. This is called the principle of” is option (b).
Chapter 29 Solutions
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