A simple model of energy flow through an ecosystem.
What is a Food Chain?
100
The journey water takes as it circulates from the land to the sky and back again.
What is the Water Cycle?
200
Living things get their energy from food.
What requires energy?
200
Interconnected pathways that allows energy flow through a group of organisms.
What is a Food Web?
200
Living factors that exist in an organism’s environment.
What are Biotic Factors?
200
Loss of energy, biomass, and numbers.
What is a Pyramid Effect?
200
A chemical substance that an organism must obtain from its environment to sustain life and to undergo life processes.
What is a Nutrient?
300
A change to a species over time.
What is Adaptations that evolve over time?
300
A large group of ecosystems that share the same climate and have similar communities.
What is a Biome?
300
Scientific discipline in which the relationships among living organisms is studied.
What is Ecology?
300
Energy is transformed into useable forms to support the functions of an ecosystem.
What is a Cycle of Matter?
300
The exchange of matter through the biosphere.
What is the Biogeochemical Cycle
400
made of one/more cells
Displays organizations
grows and develops
responds to stimuli
Requires energy
Maintains homeostasis
Adaptations evolve over time
What are characteristics of Life?
400
The chemical processes by which atmospheric nitrogen is assimilated into organic compounds.
What is Nitrogen Fixation?
400
Organisms adapt to survive with the abiotic factors present in their natural environment.
What are Abiotic Factors?
400
Organisms that eat fragments of dead matter in an ecosystem, and return nutrients to the soil, air, and water.
What are Detritivores?
400
A microbially facilitated process of nitrate reduction.
What is Denitrification?
500
Regulations of an organism's internal conditions to maintain life.
What is the Maintains of Homeostasis?
500
A group of interacting populations that occupy the same geographic area at the same time.
What is a Biological Community?
500
One organism benefits, while the other is not effected nor harmed.
What is Commensalism?
500
One of the hierarchical strata of a food web characterized by organisms which are the same number of steps removed from the primary producers.
What is a Trophic Level?
500
The biogeochemical cycle that describes the movement of phosphorus through the lithosphere, hydrosphere, and biosphere.