Ecology and Biomes Concepts

The video tutorial introduces ecology, the study of relationships between living organisms and their environment. It covers biotic and abiotic components, levels of ecological organization, and various biomes such as tundra, taiga, desert, savannah, grassland, tropical rainforest, temperate deciduous forest, marine, and freshwater biomes. The tutorial concludes with a discussion on the biosphere, the global ecosystem comprising living organisms and non-living factors.

What does ecology primarily study?

• The chemical composition of the atmosphere

• The relationships between living organisms and their environment

• The geological formations of the Earth

• The history of human civilizations

Which of the following is a biotic component of an ecosystem?

• Minerals

• Sunlight

• Water

• Bacteria

What is a population in ecological terms?

• A group of different species living together

• All organisms of the same species living in a specific area

• A single organism

• A large geographical area with similar climate

What is the next level of organization after a community?

• Organism

• Population

• Biome

• Ecosystem

What defines a biome?

• A specific climate and community of plants and animals

• A large body of water

• A mountain range

• A single species

Which biome is characterized by extremely low temperatures and short growing seasons?

• Grassland

• Savannah

• Tundra

• Desert

Where are savannah biomes typically located?

• North America

• Africa, South America, India, and Australia

• Europe

• Antarctica

What percentage of the Earth's surface is covered by tropical rainforests?

• 30%

• 7%

• 50%

• 20%

What characterizes a marine biome?

• Presence of only land animals

• Presence of only plants

• Presence of saltwater

• Presence of freshwater

What is the biosphere?

• A single ecosystem

• A global ecosystem composed of living organisms and abiotic factors

• A type of biome

• A large body of water