Ecosystem Concepts and Factors

Mrs. Anderson discusses ecosystems, focusing on biotic and abiotic factors, levels of organization, and the roles of plants, consumers, and decomposers. She explains the importance of solar energy and the carbon cycle, emphasizing the recycling of energy and matter. The video also covers ecosystem boundaries, biomes, and introduces Latin and Greek root words relevant to biology.

What are the two main types of factors that make up an ecosystem?

• Living and dead

• Organic and inorganic

• Biotic and abiotic

• Natural and artificial

At which level of organization do abiotic factors first become included?

• Organism

• Population

• Community

• Ecosystem

Which of the following is an example of a biotic factor?

• Water

• Temperature

• Sunlight

• Grass

Which of the following is NOT an abiotic factor?

• Air

• Soil

• Fungi

• Temperature

What is an autotroph?

• A consumer

• An organism that feeds on others

• A self-feeding organism

• A decomposer

Which type of organism breaks down dead material in an ecosystem?

• Decomposer

• Heterotroph

• Autotroph

• Producer

What is the primary source of energy for all ecosystems?

• Solar energy

• Geothermal energy

• Water

• Wind

What element is considered the 'energy currency' in ecosystems?

• Hydrogen

• Oxygen

• Carbon

• Nitrogen

Which law states that energy cannot be created or destroyed?

• Law of Gravity

• Law of Thermodynamics

• Law of Conservation of Energy

• Law of Conservation of Mass

What is the term for an ecosystem's boundary and spatial limits?

• Niche

• Habitat

• Perimeter

• Biome