Species Interactions - Definition
Species Interactions - Example
Food Web
Energy Flow
Random
100
What is predation? What is the symbol?
When one organism eats another organism for energy +/-
100
A lion hunts and eats a zebra. What type of relationship?
Predation
100
In this food web, who is the producer?
Fern
100
How percent of energy gets passed from one trophic level to the next?
10%
100
What do the arrows in a food chain represent?
Energy
200
What is competition? What is the symbol?
When one organism fights/competes with another organism for the same resource (-/-)
200
A tick sucks the blood from a deer. What type of relationship?
Parasitism
200
In this food chain, who is the secondary consumer?
Mouse
200
In this ecosystem, the grass has 100,000 kCal of energy. How much will the grasshopper have?
10,000 kCal
200
What are keystone species?
they are important for the ecosystem and keep it balanced
300
What is mutualism? What is the symbol?
A type of symbiosis where both organisms benefit (+/+)
300
A flower takes sunlight away from the grass. What type of relationship is it?
Competition
300
In this food web, name 2 primary consumers
Rabbits, Mice, Grasshopper, birds
300
In this ecosystem, the grass has 80,000 kCal of energy. How much will the Frog have?
800 kCal
300
What is an invasive species?
They are non-native and harm the exosystem
400
What is commensalism? What is the symbol?
Type of symbiosis where one benefits the other is not affected (+/0)
400
The bird eats the insects off the cow's back. The cow is unaffected. What type of interaction?
Commensalism
400
In this food web, name 2 tertiary consumers.
Owls and Foxes
400
In this ecosystem, the grass has 550,000 kCal of energy. How much will the snake have?
550 kCal
400
How do invasive species harm the ecosystem?
They take resources away from native species.
500
What is parasitism? What is the symbol?
Type of symbiosis where one organism benefits, the other is harmed (+/-)
500
The bee helps the flower spread pollen. The follower gives nectar to the bee. What type of interaction?
Mutualism
500
In this food web, which organism's removal will lead to decreases in all populations? Why?
The phytoplankton because it is a producer
500
In this ecosystem, the grass has 900,000 kCal of energy. How much will the Eagle have?
90 kCal
500
In this ecosystem, the eagle has 50 kCal of energy. How much did the frog have?
5,000 kCal