Ecosystem Organization
Air in an ecosystem is what type of factor?
An abiotic factor
the movement of energy between organisms
True or False: Organisms can play more than one role (primary or secondary) in an ecosystem.
True
An environmental factor, such as food, water, weather or space, that causes the population to stop growing or decrease is called
A limiting factor
The first consumer to eat is called a
primary consumer
True or False: a Food Web is a more realistic way to represent energy transfer in an ecosystem
True
As you move up an energy pyramid, the number of organisms
Decreases
Emigration means
to move out of an ecosystem
Where do green plants get most of the energy they need to make their own food?
sunlight
In a food chain, how many directions does the energy move?
In one direction through a series of organisms
What would happen if one organism in a food chain went extinct?
The food chain may collapse or have to find different food sources
Which organism has the most available energy?
Producers
Name the levels of organization in an ecosystem
organism - population - communities - ecosystem
How do carnivores depend on green plants?
Carnivores depend on green plants because their prey eats green plants. If there were no green plant, there would be no prey for the predators.
What is a limitation of a food chain?
It only shows one path when some organisms are part of overlapping chains or play more than one role
True or False: Consumers get their energy from the sun
True but via other animals
True or False: As you move up the energy pyramid, more energy is transferred to the higher levels
False