Factors and Cycles
The "Web"
Biomes
Ecological Methods
Cycles of Matter
100

Biological or "living" influences within an ecosystem

Biotic Factors

100

Two food web classifications for organisms that make their own food.

What is an autotroph and producer

100

North Carolina is located in this biome

Temperate deciduous forest

100
Using chemical energy to produce carbohydrates.
What is chemosynthesis
100
Each step in a food chain or web.
What is a trophic level.
200

Habitat, predators, migration and competition

Density Dependent

200

Cycles dead material back into the food web

What is a detrivore or decomposers

200
Collection of different populations that live together in an area.
What is a community.
200
A group of ecosystems that have the same climate and dominant communities.
What is a biome.
200

A linear sequence of organisms that uses the next lower level organism as a food source

What is a Food Chain

300

Physical or non-living factors that shape ecosystems

Abiotic Factors

300

Complex interlocking food chain patterns

What is a food web.

300
Total amount of living tissue in a trophic level.
What is biomass.
300
Rate at which organic matter is created by producers.
What is primary production.
300
Process in which bacteria convert nitrates into nitrogen gas.
What is denitrification.
400

Climate, nutrients, pollutants and natural disasters

Density Independent Factors

400
Primary producer in the upper levels of the ocean.
What is algae.
400
Assemblage of different populations that live together in a defined area.
What is a community.
400
Scientists use these to gain insight into complex phenomenon.
What is a model.
400

% energy for secondary consumers

What is 10%

500

This connects biological, geological and chemical aspects of the biosphere.

Biogeochemical Cycles

500

Carnivores that eat dead things

What are scavengers

500
The combined portions of the planet in which all life exists.
What is a biosphere.
500
They are difficult to study because they occur over long periods of time or on large spatial scales.
What is an ecological phenomenon.
500

Nitrogen gas converted to ammonia for uptake by plants

Nitrogen Fixation