Energy Flow in Ecosystems Quiz

What is the process by which plants use sunlight, carbon dioxide, and water to produce carbohydrates?

• Cellular respiration

• Photosynthesis

• Chemical synthesis

• Decomposition

What is the term for an organism that can make organic molecules from inorganic molecules?

• Consumer

• Autotroph

• Decomposer

• Heterotroph

What is the primary source of energy for most ecosystems?

• Decomposition

• Sunlight

• Geothermal vents

• Chemical synthesis

What type of consumer eats only plants?

• Detrivore

• Carnivore

• Herbivore

• Omnivore

What is the process by which organisms obtain energy from the food they eat?

• Decomposition

• Chemical synthesis

• Cellular respiration

• Photosynthesis

What is the term for a sequence where energy gets transferred from one organism to the next?

• Energy pyramid

• Food chain

• Tropic level

• Food web

What is the base of the energy pyramid in an ecosystem?

• Secondary consumers

• Tertiary consumers

• Primary consumers

• Producers

What is the term for each step in the transfer of energy in an ecosystem?

• Decomposition

• Trophic level

• Food chain

• Energy transfer

What is the term for an organism that specializes in eating things that are already dead?

• Decomposer

• Omnivore

• Carnivore

• Detrivore

What is the process by which cells absorb oxygen and release energy from the food?

• Decomposition

• Cellular respiration

• Chemical synthesis

• Photosynthesis