Question 1:

What is a transitional fossil?

Explanation: A transitional fossil is a fossilized organism that shows intermediate characteristics between different groups. These fossils provide evidence of evolutionary change and help illustrate the gradual transition from one form to another. Therefore, option B is correct.

Question 2:

What does the fossil record provide evidence for?

Explanation: The fossil record provides evidence for the evolution and diversification of organisms. Fossils preserved in rocks of different ages allow scientists to study the history of life on Earth and trace the changes in species over time. Therefore, option D is correct.

Question 3:

What is radiometric dating used for in relation to fossils?

Explanation: Radiometric dating is used to determine the age of rocks that contain fossils. By measuring the decay of radioactive isotopes within the rocks, scientists can estimate the age of the fossils found in those rocks. Therefore, option A is correct.

Question 4:

What is the Law of Superposition?

Explanation: The Law of Superposition states that fossils found in deeper rock layers are older than those found in upper layers. It reflects the principle of sedimentary rock formation, where newer layers are deposited on top of older layers over time. Therefore, option A is correct.

Question 5:

Why are transitional fossils important in understanding evolutionary relationships?

Explanation: Transitional fossils are important in understanding evolutionary relationships because they show the gradual transitions between different groups of organisms. These fossils provide direct evidence of evolutionary change and help bridge the gaps between major taxonomic groups. Therefore, option D is correct.