History of Life on Earth
Explore the major events and theories in the evolution of life on Earth, from its origins to the diversification of species, suitable for Grade 11 science students.
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History of Life on Earth
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Read each question carefully and answer to the best of your ability. Show all work for calculations and provide detailed explanations for short answer questions.
1. Which of the following is considered the earliest form of life on Earth?
Dinosaurs
Prokaryotes
Fish
Multicellular algae
2. The theory that life arose from non-living matter through natural processes is called .
3. The first photosynthetic organisms were , which significantly changed Earth's atmosphere.
4. The Cambrian Explosion refers to a period of rapid diversification of animal life.
True
False
5. Describe the significance of the Miller-Urey experiment in understanding the origin of life.
Match the geological era with its key characteristic.
6. Paleozoic Era
a. Age of Mammals
7. Mesozoic Era
b. First land plants and animals
8. Cenozoic Era
c. Age of Reptiles (Dinosaurs)
9. Explain the endosymbiotic theory and its role in the evolution of eukaryotic cells.