Food Chains
What shows energy flow in a food chain?
Arrows.
Where do arrows point in a food web?
To the consumer.
Which level includes plants?
Producers.
Where does energy in ecosystems come from?
The Sun.
What is a producer?
Makes its own food.
What is a food chain.
Sequence showing energy flow.
What is a food web?
Interconnected food chains.
What is a trophic level?
An organism's position in a food chain.
What is the producer's role in energy flow?
Convert sunlight into energy. (photosynthesis)
What is a consumer?
Eats other organisms.
In this food chain, Grass → Grasshopper → Frog, what is the frog?
Secondary consumer.
Where are producers in a food web?
At the base.
What level are herbivores in?
Primary consumers.
Why can't food chains have unlimited levels?
Energy runs out.
Give an example of a primary consumer.
Grasshopper.
Rabbit.
Mouse.
What happens if a secondary consumer is removed from a food chain?
Primary consumers overpopulate
Why are food webs more realistic?
Organisms eat multiple foods.
What trophic level do carnivores that eat herbivores belong to?
Secondary consumers.
What happens to energy as it flow up trophic levels?
It reduces.
Difference between herbivores and carnivores?
Herbivores eat plants; carnivores eat animals.
What happens if the producer is removed?
The food chain collapses.
What happens if secondary consumers disappear?
Overpopulation of primary consumers
What is the top trophic level?
Apex Predator.
Tertiary Consumer
Quaternary Consumer.
Why does energy decrease at each level?
Lost as heat and waste
Name an omnivore and the trophic levels it occupies.
Humans, primary and secondary.
Dogs, primary and secondary.
Birds, primary and secondary.