Food Chains
How are the living creatures in an ecosystem linked?
By what they eat
Food webs model the way _______ moves through an ecosystem.
Energy
A habitat is:
Where species live
What is a carnivore?
Eats only meat
What role do you play in the food web?
Consumer
Wolves eat elk, and elk eat blackberries. Which species is a secondary consumer?
Wolves
What is the source of energy for photosynthesis?
Sun
What is the difference between population and community?
Population is ONE specific species, community is multiple populations living together in one environment.
What is the Primary consumers position in the food chain? What do they eat?
Second, they eat producers.
How might a lack of sunlight disrupt the food web?
It would prevent producers from producing nutrients
What can you infer from the fact that the disappearance of just one species can disrupt an entire food chain?
Food chains are extremely fragile
The relationship between a food web and a food chain is most similar to the relationship between a road map and:
A driving route
Where does the energy in most ecosystems originate?
The sun
What is an omnivore
Eats both plants and animals
Sheep are herbivorous. What can you infer from this?
They are primary consumers
How is a food web different from a food chain?
Food webs contain many different, linked food chains
What is the role of producers in an ecosystem?
To harness energy
What might happen if we build a highway in an area with a lot of available space?
Animal habitats are there, it will disrupt their homes and put them in danger.
Give an example of an herbivore. How do you know it is an herbivore?
Eats only plants
Consumers get their energy:
from eating other organisms
How are primary consumers different from secondary consumers?
Primary consumers eat only plants, secondary consumers eat other consumers
How do primary consumers get their energy?
By eating producers
What is an ecosystem?
An ecosystem consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows.
Define decomposer
Breaks down dead plant and animal tissue and returns the nutrients to the soil
What is the third consumer in a food chain called? What do they eat?
Tertiary Consumer