Ecosystem Roles and Biomes

The video tutorial explains ecological levels using the BEO acronym: Biosphere, Biomes, Ecosystems, Communities, Populations, and Organisms. It describes the biosphere as the life-supporting layer of Earth, biomes as regions with similar climate, ecosystems as communities of organisms and abiotic factors, and populations as groups of the same species. The tutorial also covers habitats, where organisms live, and niches, the roles organisms play in their environment.

What does the acronym BEO stand for in ecological studies?

• Biome, Ecosystem, Organism

• Biosphere, Ecosystem, Organism

• Biosphere, Biome, Organism

• Biosphere, Biome, Ecosystem

Which of the following is NOT a component of the biosphere?

• Atmosphere

• Oceans

• Inner Core

• Upper Crust

Which biome is characterized by high rainfall and dense vegetation?

• Desert

• Tundra

• Rainforest

• Savanna

Which of the following is NOT a type of biome?

• Desert

• Rainforest

• Ocean

• Tundra

What is the primary difference between a community and a population?

• A community is larger than a population.

• A population is larger than a community.

• A community is a single species, while a population includes multiple species.

• A community includes multiple species, while a population is a single species.

Which of the following best describes an ecosystem?

• A single organism's habitat

• A group of similar organisms living together

• The interaction of living and non-living components

• A specific climate zone

Which of the following is an example of a population?

• All the fish in a lake

• All the animals in a forest

• All the humans in a city

• All the plants in a garden

What is the role of a niche in an ecosystem?

• It defines the physical space an organism occupies.

• It refers to the food chain position of an organism.

• It describes the role and function of an organism within its environment.

• It is the same as a habitat.

What is the primary function of a dung beetle in its niche?

• Pollinating flowers

• Rolling and burying dung

• Hunting small insects

• Building nests

What is the primary characteristic of a habitat?

• It is the food an organism consumes.

• It is the climate of a region.

• It is the physical environment where an organism lives.

• It is the role an organism plays in its environment.