Food Chains
Single chain/pathway of flow of energy
What is a food chain?
There would be an increase in cod because they would have more to eat.
If there is an increase in scallops, which organism would benefit from it?
Tertiary Consumer Level 4
Secondary Consumer Level 3
Primary Consumer Level 2
Producer Level 1
Label each trophic level.
Decomposers
What type of organisms are mushrooms and bacteria in an energy flow?
The direction of the flow of energy.
What do the arrows indicate in a food chain?
Producers (plants)
What do the primary consumers depend on for energy?
57 Kcal
570 Kcal
5700 Kcal
Amount of energy received by each trophic level.
Mushrooms, Bacteria
What are examples of decomposers?
Decomposers break down the plant and turn it into nutrients in the soil.
What happens to the energy from a plant when it dies?
The sun provides energy for plants to convert carbon dioxide and water into sugar and oxygen.
What role does the sun play in the flow of energy?
Trophic Level 1: Producers
Which trophic level uses photosynthesis?
Decomposers rely on energy that is transferred from organisms at all trophic levels but receive less energy than primary producers.
Where do decomposers get their energy from?
Grass ---> Grasshopper ---> Lizard ---> Snake
Example of a food chain.
They are the cleaners in aquatic ecosystems by consuming algae and decaying organic matter, which improves water quality and prevents waste buildup.
What do snails do in an aquarium ecosystem?
Energy is greatest at the bottom of the pyramid because producers store energy from the Sun.
Why is the bottom trophic level of an energy pyramid typically larger than the top trophic level?
Decomposers break down the rotting log and release nutrients into the soil.
What role does rotting wood play in an ecosystem?
What do all food chains/food webs always start with?
Producers because they receive all their energy from the sun.
Decomposers, worms and snails in the soil
What do gardens need to ensure the continuous flow of energy?
Each level only receives 10% of energy from the level below it. Producers receive 100% of energy from the sun. Primary consumers receive 10% of energy from the producers. Secondary consumers receive 1% of energy from primary consumers.
Explain the flow of energy in an energy pyramid using the 10% rule.
Snails
What is missing from an aquarium ecosystem so that the water stays clean, and all the matter is recycled?