What is the smallest level of biological organization?

• Organism

• Population

• Community

• Ecosystem

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

• Sunlight

• Temperature

• Water

• Plants

What role do decomposers play in an ecosystem?

• Capture sunlight

• Provide energy for herbivores

• Break down dead organic matter

• Compete for resources

Which level of biological organization includes all biotic and abiotic factors on Earth?

• Ecosystem

• Biome

• Biosphere

• Community

How do abiotic factors influence an ecosystem?

• By providing energy for herbivores

• By determining which plants can grow

• By breaking down dead organic matter

• By capturing sunlight

What is the primary source of energy for the biosphere?

• Water

• Soil

• Sun

• Plants

In a forest ecosystem, what is the role of producers?

• Consume herbivores

• Capture sunlight

• Break down organic matter

• Compete for resources

According to the passage, how does understanding biological organization contribute to the environmental protection efforts?

1. What impact does resource availability have on population growth?

Reorder the following: Largest to smallest

• Community

• Population

• Ecosystem

• Biosphere

• Organism