Question

Which of the following best explains how the fossil record provides evidence that evolution has occurred?

a. It shows that forms of life existed on Earth at least 3.5 billion years ago.
b. It shows the detail of structural and behavioral adaptations of organisms.
c. It shows how the embryos of many different vertebrate species are very similar.
d. It shows that the structure of groups of organisms have progressively changed over time.

Answer 1

A It shows that forms of life existed on Earth at least 3.5 billion years ago.

Step-by-step explanation:

AIt indicates that forms of life existed on Earth at least 3.5 billion years ago. It indicates the exact cause of structural and behavioral adaptations of organisms.

A new study in the Proceedings of the National Academy of Sciences that uses the latest techniques to date the most aged remains available, confirming the existence of bacteria and microbes nearly 3.5 billion years ago, possibly living on a planet without oxygen.

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