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Continuity of life on Earth — Question 5

QCAA 2020, Paper 1 · 1 mark

Q5 · 2020 · Paper 1Unclassified1 mark

QUESTION 5

The figure shows the diversity of marine animals since the late Precambrian time. The data is from marine animal families that have been reliably preserved in the fossil record.

Biology question figure

Which of the following time periods saw the greatest evolutionary radiation of the marine families?

(A) Ordovician

(B) Cretaceous

(C) Devonian

(D) Permian

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