Ecosystem Quiz

What is the name of the layer of Earth where life exists?

• Lithosphere

• Hydrosphere

• Atmosphere

• Biosphere

Which of the following is a biotic factor in an ecosystem?

• Water

• Soil

• Sunlight

• Plants

What is the process by which plants convert sunlight into energy?

• Respiration

• Photosynthesis

• Decomposition

• Cellular respiration

Producers are also known as:

• Consumers

• Decomposers

• Autotrophs

• Heterotrophs

Which of the following is a consumer in a food chain?

• Grass

• Sun

• Rabbit

• Bacteria

Decomposers play a crucial role in ecosystems by:

• Producing energy from sunlight

• Breaking down dead organisms and waste

• Consuming plants

• Hunting other animals

What is the term for the interconnected relationships between living things and their environment?

• Ecosystem

• Biosphere

• Habitat

• Niche

Which of the following is a symbiotic relationship where both organisms benefit?

• Parasitism

• Commensalism

• Mutualism

The movement of energy through an ecosystem is best represented by:

• A food web

• A food chain

• A pyramid

• A cycle

Human activities can have a significant impact on ecosystems. Which of the following is a negative impact caused by humans?

• Pollution

• Conservation

• Reforestation

• Recycling