The diagram shows fossils in different layers of rock. (a) (i) Which layer of rock is most likely to contain the oldest fossils? Put a cross (X) in the box next to your answer. A B C D (ii) Use one word from the box to complete the sentence. The fossil record provides evidence for ... replication probiotics evolution osmosis.

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The diagram shows fossils in different layers of rock - Edexcel - GCSE Biology - Question 2 - 2016 - Paper 1

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The diagram shows fossils in different layers of rock. (a) (i) Which layer of rock is most likely to contain the oldest fossils? Put a cross (X) in the box next to ... show full transcript

Worked Solution & Example Answer:The diagram shows fossils in different layers of rock - Edexcel - GCSE Biology - Question 2 - 2016 - Paper 1

Step 1

Which layer of rock is most likely to contain the oldest fossils?

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Answer

The layer of rock that is most likely to contain the oldest fossils is layer D. In sedimentary rock layers, the principle of superposition states that older layers are found deeper in the ground, while newer layers are deposited on top.

Step 2

Use one word from the box to complete the sentence.

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Answer

The fossil record provides evidence for evolution.

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