Energy Roles 1
Energy Roles 2
Energy Roles 3
Energy Roles 4
Energy Roles 5
100
Define population in an ecosystem.
A population is all members of a single species living in a specific area at a given time.
100
What does a secondary consumer eat?
Primary Consumer
100
Where does can all energy be traced back to?
The sun!
100
What is a food chain?
A food chain is a linear sequence showing how energy and nutrients flow from one organism to another in an ecosystem.
100
What does a carnivore eat?
only meat
200
WHat is the difference between abiotic and biotic factors in an ecosytem?
Abiotic factors are the non-living components of an ecosystem, such as sunlight, water, temperature, and soil
AND
Biotic factors are the living components of an ecosystem, such as plants, animals, and microorganisms.
200
What is a decomposer?
A decomposer is an organism that breaks down dead or decaying organisms, recycling nutrients back into the ecosystem.
200
In this food web, where does the rabbit get its energy? 
Grass
200
What is a food web?
A food web is a complex network of interconnected food chains that shows how energy flows through an ecosystem.
200
What percent of energy is lost after each level?
10%
300
What is photosynthesis?
Photosynthesis is the process by which plants convert sunlight, carbon dioxide, and water into glucose and oxygen.
300
What is the difference between a producer and a consumer?
A producer is an organism that uses sunlight to make its own food through photosynthesis.
A consumer is an animal that eats plants or other animals to obtain energy.
300
Perch are a type of fish that live in Lake Erie. A Lake Erie food web is shown.
Perch use energy to avoid predators. Which statement describes how perch get energy to avoid predators, based on the food web?
B
300
Which animal is at the top of this food web (apex predator)?
Eagle
Go Eagles! ;)
300
Consumers: Hawk, Rabbit, Grasshopper, Garter Snake
Decomposers: Bacteria
Producers: Grass
400
What does a food chain show?
One pathway of energy as it passes from one organism to the next
400
What do Herbivores eat?
Plants
400
Why do organisms at the top of the food chain have to eat more than organisms at the bottom?
Energy is lost as it travels through the ecosystem so top animals don't receive much energy.
400
What does a tertiary consumer eat?
Secondary consumers
400
Explain what would happen if you removed all the producers from an ecosystem
The primary consumers would die and then all the rest of the consumers would eventually die too.
500
How do decomposers affect an ecosystem?
Decomposers break down dead organisms, returning nutrients to the soil, which supports new plant growth and maintains ecosystem health.
500
What does an omnivore eat?
eats both plants and animals
500
What happens to energy as it moves through an ecosystem?
Energy dissipates (is given off) as heat and is lost at each energy level, leading to fewer organisms at higher levels.
500
How does removing a species affect a food web?
Removing a species can lead to overpopulation of its prey and a possibly a collapse of the food web structure.
500
Create a food web of this ecosystem.
Top: Barred Owl
Middle: Gold-finch and rat snake
Bottom: Field Mouse