Producers & Consumers
What type of organism makes its own food using sunlight?
Producer
What gas contains most of the carbon in the atmosphere?
Carbon dioxide
What is the original source of energy for most ecosystems?
The Sun
What process makes glucose?
Photosynthesis
What breaks down dead organisms and waste?
Decomposers
What type of organism gets energy by eating other organisms?
Consumer
What process releases carbon dioxide into the atmosphere when organisms break down glucose?
Cellular respiration
Which trophic level has the most energy?
Producers
What two products of photosynthesis are used in cellular respiration?
Oxygen and glucose
Why don't carbon and oxygen run out?
They are recycled
What role do plants play in a food web?
Producer
What process removes carbon dioxide from the atmosphere?
Photosynthesis
How much energy is transferred to the next trophic level?
10%
What do plants do with glucose?
Cellular respiration
What happens to matter organisms do not use?
Decomposers recycle it
A bird eats grain, and an owl eats the bird. How does energy reach the owl?
(Write the food chain)
Grain → Bird → Owl
What process releases carbon dioxide when fuels are burned?
Combustion
What do arrows in a food web show?
Energy flow
What organelle releases energy from glucose?
Mitochondria
What process returns nutrients to the soil after organisms die?
Decomposition
hat can happen when a keystone species is removed?
Ecosystem imbalance
What is a likely effect of a forest fire on the carbon cycle?
More carbon dioxide in the atmosphere
Why can't an ecosystem support as many top predators as producers?
Energy loss
Do plants perform cellular respiration?
Yes
Name a process that is part of the carbon cycle.
Possible answers -
Photosynthesis, cellular respiration, decomposition, or combustion.