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Biomes and Ecosystems
Symbiosis
Trophic Levels
Random
100
A single organism in an ecosystem.
An individual
100
What is symbiosis?
Prolonged association of at least two species.
100
______ are at the bottom of the trophic level pyramid.
Producers
100
Give an example of a population
Any group of a single species in a single location: family of deer, field of dandelions, school of fish.
200
The temperate forest and tundras are both examples of this.
A biome
200
A relationship is parasitic if...
One organism benefits and the other is harmed
200
Organisms that must eat to get energy are called...
Consumers
200
What is a community made of?
Multiple species; only biotic factors
300
An ecosystem includes:
Abiotic and biotic factors; organisms and their physical environment
300
Sharks and the fish that swim alongside them, using sharks for protection and scraps of food, have what kind of relationship?
Commensalistic/Commensalim
300
Mice eat grass. Owls eat mice. What kind of consumer are the owls?
Secondary consumers
300
Crocodiles are a predator of turtles. In a lake, all of the turtles die from eating contaminated fish. What will happen to the crocodiles?
Crocodile population will decrease
400
An abiotic factor that might be found in a marine biome
The water
400
Birds pick fleas and ticks off of a zebra's back. This is what kind of symbiosis?
Mutualism
400
The arrows in a food web point out the flow of what?
Energy!
400
A squirrel and a mouse both feed on acorns. What kind of relationship exists between the squirrel and the mouse?
Competition
500
This kind of trait allows plants and animals to survive in their specific environment.
Adaptation
500
Two relationships that exist between organisms but are not symbiosis
Competition and predation
500
A mouse eats 1 pound of grass. An owl eats 1 pound of mice. An eagle eats 1 pound of owls. Which organism got the most energy from their meal?
The mouse; energy decreases as you move up the food web.
500
The water cycle is driven by...
Energy from the sun