Homeostasis
This is the process of maintaining a constant internal environment.
What is homeostasis?
Organisms that make their own food using sunlight.
What are autotrophs (producers)?
Only this percentage of energy transfers to the next trophic level.
What is 10%?
A simple, direct path of energy flow.
What is a food chain?
This trophic level has the most energy.
What are producers?
A close, long-term relationship between two species.
What is symbiosis?
Organisms like humans and horses that maintain a constant internal temperature are called this.
What are homeotherms (or endotherms)?
Organisms that must consume other organisms to live.
What are heterotrophs (consumers)?
Energy is lost between trophic levels in this form.
What is heat?
A complex network of feeding relationships.
What is a food web?
The total mass of organic matter at a trophic level.
What is biomass?
This relationship benefits both organisms.
What is mutualism?
Snakes and fish are examples of this type of organism whose body temperature matches the environment.
What are poikilotherms (or ectotherms)?
These consumers eat only plants.
What are herbivores?
Each step in the transfer of energy is called this.
What is a trophic level?
Primary consumers eat these organisms.
What are producers (autotrophs)?
This level has the least energy.
What are tertiary consumers (top predators)?
This relationship benefits one organism and harms the other.
What is parasitism?
Shivering in cold weather is an example of this biological process.
What is homeostasis?
These consumers break down dead material into nutrients.
What are decomposers?
When a lion eats a zebra, it does NOT receive all the zebra’s energy because of this law.
What is the 10% Law?
In a food web, arrows show this — not “what ate what.”
What is energy transfer?
Ecological pyramids show the relative amounts of this at each level.
What is energy (or matter/organisms)?
Succession that begins in an area with no existing community.
What is primary succession?
This type of organism does NOT maintain a constant body temperature.
What is an ectotherm?
Autotrophs that get energy from inorganic substances deep in the ocean.
What are chemotrophs?
Energy moves in this direction in a food web arrow.
What is the direction of energy transfer?
A tertiary consumer eats this type of organism.
What is a secondary consumer?
This trophic level usually has the greatest number of organisms.
What are producers?
A stable, mature community with high diversity.
What is a climax community?