no
What is the main purpose of cellular respiration?
To break down glucose for energy
What is the initial energy source for most ecosystems?
The Sun
Which level in an energy pyramid has the most available energy?
Producers
Which cycle moves carbon through the environment?
Carbon Cycle
What is the main source of atmospheric oxygen?
Photosynthesis
What are the end products of cellular respiration?
Carbon dioxide, water, and ATP
What type of organism produces its own food?
Producer
What happens to energy as it moves up a food chain?
Decreases
How do plants remove carbon dioxide from the atmosphere?
Photosynthesis
What role do decomposers play in the nitrogen cycle?
Return nitrogen to the soil
How are photosynthesis and cellular respiration interconnected?
Photosynthesis provides glucose and oxygen for respiration.
What is the role of decomposers in an ecosystem?
Break down dead organisms and recycle nutrients
Which of the following is a herbivore?
Wolf
Lion
Deer
Deer
Which process releases carbon dioxide back into the atmosphere?
Cellular Respiration
What best describes the Law of Conservation of Matter?
Matter is never created or destroyed.
Which organisms perform cellular respiration?
All living organisms
What happens to energy as it moves up a food chain?
Decreases
What happens if a key organism is removed from a food web?
The food web can become unstable, with cascading effects.
What process changes water vapor into liquid water?
Evaporation
Why are matter cycles important for ecosystems?
To help organisms obtain materials
What is the correct equation for photosynthesis?
CO₂ + H₂O + light → C₆H₁₂O₆ + O₂
What best describes a food web?
A single energy transfer pathway
Approximately how much energy is transferred between trophic levels?
10%
How does nitrogen become usable for plants?
Nitrogen Fixation
What is the term for the loss of water from a plant's leaves?
Transpiration