Show:
Ecosystem Organization
Producers, Consumers & Decomposers
Food Chains
Food Web
Energy Pyramid
100

Air in an ecosystem is what type of factor?

An abiotic factor

100
Green plants, which make their own food
producers
100
Movement of food energy in a series of organisms
Food chain
100
What is the term for food chains that overlap?
Food web
100
What percent of the energy is used by producers to grow and reproduce?
90%
200
An environment that meets the needs of an organism
Habitat
200
Animals, which cannot make their own food
consumers
200
The arrows on a food chain indicate what?

the movement of energy between organisms

200

True or False: Organisms can play more than one role (primary or secondary) in an ecosystem.

True

200
What percent of energy gets passed from one level of the food chain to another?
10%
300

An environmental factor, such as food, water, weather or space, that causes the population to stop growing or decrease is called

A limiting factor

300
Living things that feed on the wastes and remains of plants and animals
Decomposers
300

The first consumer to eat is called a 

primary consumer

300

True or False: a Food Web is a more realistic way to represent energy transfer in an ecosystem

True

300

As you move up an energy pyramid, the number of organisms 

Decreases

400

Emigration means

to move out of an ecosystem

400

Where do green plants get most of the energy they need to make their own food?

sunlight

400

In a food chain, how many directions does the energy move?

In one direction through a series of organisms

400

What would happen if one organism in a food chain went extinct?

The food chain may collapse or have to find different food sources

400

Which organism has the most available energy?

Producers

500

Name the levels of organization in an ecosystem

organism - population - communities - ecosystem

500

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.

500

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

500

True or False: Consumers get their energy from the sun

True but via other animals

500

True or False: As you move up the energy pyramid, more energy is transferred to the higher levels

False