Practice A Brief Account of Evolution - 6.8 | 6. EVOLUTION | CBSE Grade-12 Biology
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A Brief Account of Evolution

6.8 - A Brief Account of Evolution

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What significant event happened about 2000 million years ago?

💡 Hint: Think about the history of life.

Question 2 Easy

When did multicellular organisms first appear?

💡 Hint: Consider the time frame of significant evolutionary changes.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

When did the first cellular life appear?

2000 million years ago
500 million years ago
350 million years ago

💡 Hint: Think about the age of the Earth.

Question 2

True or False: Mammals evolved before the dinosaurs.

True
False

💡 Hint: Consider the timeline of life.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Trace the transition from aquatic to terrestrial life through evolutionary stages, identifying key species and adaptations.

💡 Hint: Focus on the anatomical changes that allowed survival in different environments.

Challenge 2 Hard

Analyze the impact of mass extinction events on evolutionary paths using the example of dinosaurs and mammals.

💡 Hint: Consider how competition affects survival and adaptation.

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Reference links

Supplementary resources to enhance your learning experience.