Trophic Levels
An organism that makes it own food can be called a producer or an....
Autotroph
For organisms to be able to survive, there must be enough ________________ to support them.
Resources
What is a system of living things interacting with nonliving components of the area where they live?
Ecosystem
What shows all of the food chains in an ecosystem are connected?
A Food Web
Indicate if these biotic or abiotic factors: dead trees, leaves, grass, and a skunk
Biotic Factors
An organism that eats producers is known as a
Primary Consumer
List how ecosystems can be organized going from most simple to most complex.
Organism --> Population --> Community --> Ecosystem
What is a factor in an ecosystem that used to be alive or is alive?
Biotic Factor
What is the variable that the scientist changes in an experiement?
Independent Variable
Indicate if these are abiotic or biotic factors: rocks, sand, and water
Abiotic
An organism that eats primary consumers is called a...
Secondary Consumer
List three limiting factors in an ecosystem.
Space, Food, Water, Shelter, Nesting Sites
What keeps a population from reaching its full potential size?
Limiting Factors
How does energy enter an ecosystem?
The sun
How would a limited amount of space affect the population of a species?
An organism that eats secondary consumers is known as a...
Tertiary Consumer
What is a group of individuals of the same species that live in the same place?
Population
What is the abiotic conditions under which induvial can survive and the role they play in an ecosystem?
Niche
True or False: two organisms can occupy the same exact niche?
False
What is the variable that the scientist compares their results to in an experiment?
The control
An organism that gets its energy from dead organisms is known as a...
Decomposer
What percentage of energy gets transferred through trophic levels?
10%
What is place where an organism usually lives and is a part of an organism's niche?
What is an organism that has no natural predators?
Apex Predator
If the species of mice (primary consumer) increases, what happens to the population of producers that it eats?