What is the three distinct phases of a populations life cycle?
100
What is the sun
What is the major energy source for ecosystem?
100
Energy is highest with producers since they get there energy from the sun. At each level the energy decreases because each consumer uses some of the energy it takes in.
What is the method of energy flow through a food chain?
100
Abiotic factors affect the living organisms in the freshwater community.
What is the effects of abiotic components?
100
Its apart of symbiosis. Mutualism is when two work together and both benefit
What is mutualism? And what is it apart of?
200
What is the things that prevent a population from growing any larger.
What is the definition limiting factors?
200
What is an ecosystem
All matter including essential nutrients cycle through what?
200
Basically what eats what.
What is food web?
200
Each organism depends on one another to obtain energy.
Why is interdependence important?
200
Only one benefits and the other one gets hurt
What is Parasitism?
300
What is the nonliving elements in an ecosystem.
What is abiotic factors?
300
What is a close and permanent relationship between organisms of two different species.
What is symbiosis?
300
Through nutrients
What is the energy flow in food webs?
300
Groups around the Earth with similar climates.
What is biomes?
300
One benefits and the other has no harm, no help
What is Commensalism?
400
Ecosystems demonstrate an exchange of energy and nutrients among inhabiting organisms.
What do ecosystems do?
400
What is was initial growth stage, exponential growth, steady state, decline, and extinction.
What does population growth curves many characteristics such as what?
400
the total dry weight of the organisms in a trophic level
a biomass pyramid is a diagram showing the biomass at each trophic level of a food chain
What is biomass? And what is a biomass pyramid?
400
Portion of Earth supporting life
What is biosphere?
400
Cactus - stag beetle - scorpion - hawk
What is an example of food chain?
500
Energy flows from producers to various levels of consumers and decomposers.
How does energy flow in an ecosystem?
500
Energy enters as light from sun and leaves the ecosystem as heat (flow)
Not destroyed, but converted to forms that leave the ecosystem
Nutrients are cycled within the ecosystem
Describe "flow vs. cycle"
500
the amount of organisms in the chain
What does a pyramid of numbers show?
500
The role you play in life. No two niche's can overlap 100%
What is niche? And what' significant about it?
500
Autotrophic, heterotroph, scavengers, and decomposers
What are the four types of organisms obtaining energy?