Exploring the Biosphere: Earth's Realm of Life

The video tutorial explains the concept of the biosphere, which includes all living things on Earth. It covers the origin of the term 'bio' from Greek, the extent of the biosphere, and its interaction with other Earth spheres. The tutorial also introduces biomes, regions with similar climates, plants, and animals, and discusses the history of the biosphere, starting with prokaryotes. The impact of human activity on the biosphere and other spheres is highlighted. The video concludes with review questions to reinforce learning.

What is the origin of the prefix 'bio'?

• Ground

• Earth

• Water

• Life

Which term describes regions with similar climate, plants, and animals?

• Atmospheres

• None of the above

• Habitats

• Biomes

How long has the Earth's biosphere existed?

• Fewer than 1,000,000 years

• About 10 million years

• About 3.5 billion years

• Nearly 1 billion years

What type of organisms were the first in the Earth's biosphere?

• Plants

• Eukaryotes

• Prokaryotes

• Multicellular organisms

How does human activity affect the Earth's spheres?

• It only affects the biosphere

• It only affects the atmosphere

• It has no impact

• It can significantly impact all four spheres