Show:
Cycles
Energy Flow
Disruptions & Stability
Ecological Relationships
Biodiversity
100

Which cycle moves carbon through living and nonliving things?

What is the carbon cycle?

100
These organisms produce energy through photosynthesis or chemosynthesis.
What are autotrophs?
100

What happens to an ecosystem when a key species is removed?

It becomes less stable

100
A relationship between two species in which one species benefits and the other is neither helped nor harmed.
What is commensalism?
100

Variety of living organisms

What is biodiversity?

200

Which organisms play a key role in recycling nutrients?

What are decomposers/bacteria?

200

Where does the main source of energy come from?

What is the sun?

200

A drought reduces plant growth. What happens to herbivores?

They decrease

200
A relationship between two species in which one species benefits and the other is harmed.
What is parasitism?
200

How does high biodiversity affect stability?

Increases stability

300

Why is nitrogen important to living organisms?

It is used to build proteins and DNA

300

Which trophic level would have the greatest impact on a food web if it were removed?  

What are producers?

300

Pollution kills decomposers. What happens to nutrient cycling?

It slows down or stops
300
A relationship between two species in which both species benefit.
What is mutualism?
300

What is one effect of decreased biodiversity?

Ecosystem becomes less stable

400
An organism that breaks down wastes and dead organisms.
What is a decomposer?
400

Why is less energy available at higher trophic levels?

What is energy lost as heat?

400

This process causes toxin concentrations to increase at higher trophic levels in a food chain.

What is biomagnification?

400

An interaction in which one organism benefits and the other is not affected.

What is commensalism?

400

High biodiversity is a sign of a healthy ecosystem? True/False

True

500

What happens if the nitrogen cycle is disrupted?

Plant growth decreases

500
What is the percentage of energy LOST as it moves from producer to primary consumer to secondary consumer?
What is 90%?
500

A toxin enters a food chain. Which organism is MOST affected and why?

Top predators, because of biomagnification

500
Two or more organisms competing for the same resource.
What is competition?
500

Study of the interactions of living things and their environment.

What is ecology?