Interactions in the Environment Test Module 2

What do autotrophs do in an ecosystem?

• Produce their own food using energy from the sun
• Break down chemicals from other organisms
• Rely on other organisms for food
• Decompose organic matter

What do detritivores do in an ecosystem?

• Break down chemicals from producers into simpler forms
• Create their own food using sunlight
• Produce energy for other organisms
• Eat other living organisms

Select a logical order for the following terms; Secondary consumer, producer, primary consumer, tertiary consumer, apex predator.

• Producer, primary consumer, secondary consumer, tertiary consumer, apex predator.
• Primary consumer, secondary consumer, apex predator. Producer, tertiary consumer.
• Apex predator, producer, tertiary consumer, primary consumer, secondary consumer.

Which category includes factors like soil, air, rocks, and minerals?

• Abiotic factors
• Autotrophs
• Heterotrophs
• Detritivores

Why are abiotic factors important in an ecosystem?

• They provide physical and chemical conditions necessary for the survival of biotic creatures.
• They serve as a source of food for biotic creatures.
• They are the primary energy producers in an ecosystem.
• They are responsible for breaking down organic matter.

What does the biosphere include on Earth?

• Only the mountain tops
• Only the atmosphere above the lithosphere
• Only the Earth's water, including oceans and rivers
• All parts of Earth where life exists

Which layer of Earth is described as the solid surface layer?

• The lithosphere
• The hydrosphere
• The atmosphere
• The biosphere

What is the layer of air above the lithosphere called?

• The atmosphere
• The lithosphere
• The hydrosphere
• The biosphere

Where is the majority of life found within the biosphere?

• Between about 500 meters below the ocean's surface and about six kilometers above sea level
• Above six kilometers above sea level
• Below 500 meters below the ocean's surface
• In the Earth's core

What do arrows in a food chain represent?

• The direction in which energy and nutrients flow.
• The number of individuals in each species.
• The size of each species in the chain.
• The competition among species for food.