Which of the following is not true regarding the origin of animals?

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The fossil record suggests that animals evolved 100 million years ago

The fossil record suggests that animals evolved during the Vendian period of the latest Neoproterozoic era

The fossil record suggests that animals evolved 565 million years ago

The major groups of animals were formed by the beginning of the Cambrian period of the Paleozoic era

answer is D.

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Detailed Solution

Evolution refers to the gradual accumulation of changes in organism populations over generations, leading to the development of new species that are better adapted to their environment.

The fossil record suggests that animals did not evolve 100 million years ago.

Animals evolved 565 million years ago, during the Vendian period of the latest Neoproterozoic era, according to the fossil record.

This was followed by the rapid diversification of animal life during the Paleozoic era's Cambrian period, when the major animal groups, including chordates and arthropods, first appeared.

The fossil record demonstrates a rapid increase in the diversity and complexity of animal life over a relatively short period of time and is regarded as one of the most significant events in Earth's history.

As a result, the fossil record does not support the claim that animals evolved 100 million years ago.

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