Levels of Organization
Producers & Consumers
Feeding Relationships and Energy
Cycles
A Bit of Everything
100
A collection of all the organisms that live in a particular place, together with their nonliving or physical, environment.
Ecosystem.
100
What species obtains energy by simply eating plants? Herbivores
Herbivores
100
The greatest amount of energy is located where on an energy pyramid?
At the Bottom
100
The process by which water changes from a liquid to an atmospheric gas.
Evaporation
100
Into what level of ecological organization, would a group of ten cows living within the same area be placed?
A Population
200
A group of organisms so similar to one another that they can breed and produce fertile offspring?
Species
200
A bacteria or fungi that breaks down organic matter could be classified as:
A Decomposer
200
What makes up the first trophic level?
Producers
200
The evaporation of water from leaves.
Transpiration
200
What step of the water cycle can be described as the process by which water enters the ground?
Seepage
300
Assemblages of different populations that live together in a defined area.
Communities
300
What is a synonym for a producer?
An Autotroph
300
Which trophic level would possess the lowest biomass numbers?
The consumers at the top trophic level.
300
Bacteria convert nitrogen gas to ammonia in a process known as:
Nitrogen fixation
300
This occurs when bacteria converts nitrates in the soil into nitrogen gas.
Denitrification
400
The tundra is an example of a/an
Biome
400
These animals feed on plant and animal remains and other dead matter.
Detritivores
400
About what percent of energy gets passed up to the next trophic level?
10%
400
Human activities, such as mining, cutting,and burning forests release this compound in the atmosphere.
Carbon dioxide
400
Volcanic activity releases this compound into the atmosphere.
Carbon dioxide
500
The combination of 100 trees, 60 roses, 10 ducks, one million bacteria, and 200 ants, would be categorized under what level of organization.
Community
500
Organisms that rely on the bonds within hydrogen sulfide to create energy, would be using the process of:
Chemosynthesis
500
List the six levels of ecological organization, from the simplest to the most complex level.
Species, populations, communities, ecosystems, biomes, and the biosphere.
500
Nitrogen makes up what percentage of Earth's atmosphere?
78%
500
Elements, chemical compounds, and other forms of matter are passed from one organism to another in a/an?
Biogeochemical cycles
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