Levels of Organization
Energy and Food Webs
Symbiosis and Population
Human Impacts and Carbon Cycle
Biomes and Biodiversity
100

A group of different species living together in the same area.

Community

100

These organisms form the base of every energy pyramid.

Producers 

100

A tick feeding on a deer is an example of this type of relationship.

Parasitism 

100

Trees remove this gas from the atmosphere and store it in their tissues.

Carbon Dioxide

100

This biome has the highest biodiversity due to warm temperatures and high rainfall.


Rain forest

200

All living and nonliving components interacting in one area.

Ecosystem 

200

If producers capture 50,000 kcal of energy, about this much energy would be available to primary consumers (10% rule).

5,000 kcal

200

When both organisms benefit, such as ants protecting a plant while living in it, the relationship is called this.

Mutualism 

200

Cutting down forests decreases this important ecological process.

carbon sequestration

200

Low rainfall and extreme temperatures describe this biome.

Desert 


300

The global region that includes all ecosystems on Earth.

Biosphere

300

In a food chain: grass → grasshopper → frog → snake, this organism is the secondary consumer.

The frog

300

If prey numbers increase, predator numbers will usually do this shortly after.

Increase

300

Using wood to make long-lasting furniture helps reduce atmospheric carbon because it does this.

Stores carbon for a longer time


300

The number and variety of species in a particular area is called this.

Biodiversity 

400

A single species of fish living in a lake would be classified as this.

Population

400

Energy decreases at higher trophic levels because most energy is lost as this.

Heat 

400

A sudden drop in predators could cause prey populations to do this.

Increase rapidly 

400

An invasive species that consumes native plants will most likely cause this effect on biodiversity.

Decrease in biodiversity


400

Tundra and temperature grassland/ cold desert are most similar in this environmental factor.

Cold Temperature

500

If lake trout decrease and affect birds that eat them, this level of organization is being impacted.

Community 

500

If algae-eating fish are removed from a reef, this will most likely happen to algae populations.

They will increase.

500

The maximum population size an environment can sustainably support is called this.

Carrying capacity 

500

Before reintroducing an endangered species into the wild, scientists perform small controlled tests to reduce this type of risk.

Ecological failure

500

Climate is primarily determined by these two factors

Temperature and precipitation 


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