Week 6 Flashcards
What is a food chain
A model that shows the flow of energy in an ecosystem
What is the source of energy to producers?
The sun
What are levels on the food chain called
Tropic
What would happen if the producers population size is reduced?
The populations of the consumers would fall
What would happen to the population size if the primary consumer is reduced?
The population of the producers would do well and the secondary consumers will starve and compete more
What happens if the secondary consumer is reduced
If the secondary consumer is reduced the primary consumers will do well and maybe over populate and overeat producers and starve too
If the tertiary consumers were reduced
The secondary consumers would eat more of the primary consumers
How much of the energy pyramid do producers get
100%
What percent do primary consumers get?
10%
How much percent do secondary consumers get?
1%
How much do tertiary consumers get
0.1%
What percent of energy is transferred to the next tropic level?
10%
What is the other 90% of the energy used for in organisms
The energy is used for living, growing and reproducing
Why are food charts important
They show how organisms depend on each other for energy
What does S stand for?
Richness