Q. How many million years ago did early cynodonts exist?

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Q. Inner membranes of mitochondria have transport systems similar to those of

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Q. Which of following was longest eon?

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Q. Cell in which an endosymbiont life is called

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Q. In each mass extinction, what is average percentage of marine animals that went extinct?

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Q. What is rate of movement of continents per year?

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Q. For how many billion years first three eons lasted?

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Q. For how many million years origin of earth is to be estimated?

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Q. Drifting apart of continents due to movements in mantle is called

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Q. Continents are part of earth crust that float over which of following?

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Q. Which of following plants are referred to as gymnosperms?

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Q. Which of following is richest source of fossils?

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Q. For which of following canine teeth are used?

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Q. Which of following plants are referred to as angiosperms?

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Q. Humans belong in which of following eons?

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Q. What are last billion years on earth called?

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Q. What are RNA catalysts called?

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Q. Which of following is not an example of an epoch?

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Q. What are sedimentary rock layers called?

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Q. Mitochondrial DNA is in which of following forms?

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