Trophic Levels
What are producers?
An organism that eats plants
What is a herbivore?
What is an organism?
The variable in an experiment that the scientist keeps the same.
What is a constant variable?
The standard metric unit for mass
What is a gram?
Organisms that eat producers in a food chain
What are primary consumers?
An organism that eats meat
What is a carnivore?
A group of a species that lives in the same ecosystem.
What is a population?
The variable in an experiment that the scientist changes.
What is the independent variable?
Standard metric unit for volume
What is a liter?
Organisms that eat primary consumers in a food chain.
What are secondary consumers?
An organism that eats animals and plants
What is an omnivore?
Something needed by a living thing to survive in an ecosystem (food, water, shelter...etc)
What is a resource?
The variable that the scientist measures or observes
What is the dependent variable?
An example of a decomposer
What is bacteria?
OR
What is fungi?
Energy in a food pyramid comes from...
What is the sun?
What is a scavenger?
A term that describes the number of a certain species in an ecosystem (2 words).
What is population size?
On a graph, the axis that the independent variable is found on.
What is the x axis?
The process by which plants use sunlight to make their own food
What is photosynthesis?
What is the top/apex predator?
A living thing that breaks down dead organisms
When a change occurs at the top of the food chain that cause effects lower down...
What is a trophic cascade?
An educated guess or predication for a scientific experiment
What is a hypothesis?
An interaction between organisms in an ecosystem that all/both want a limited resource.
What is competition?