Study Guide Flashcards
Energy Pyramid
An energy pyramid is a graphical model of energy flow in a community.
Food web
A system of interlocking interdependent food chains.
Decomposer
Decomposers break down and absurd nutrients from decay.
Food chain
A food chain shows how food and energy passes through organisms.
Coniferous
Plants that produce reproductive organs called cones.
Consumer
an organism that eats other living things to get energy; an organism that does not produce its own food
Biome
a major ecological community such as grassland, tropical rain forest, or desert
Deciduous
a forest containing trees that lose their leaves each year
Ecology
the branch of biology that deals with the relations of organisms to one another and to their physical surroundings
Cycle
the movement of a substance through different reservoirs or stages
Nitrogen Cycle
a process in which nitrogen in the atmosphere enters the soil and becomes part of living organisms then eventually returns to the atmosphere
Biotic factors
all of the living parts of an ecosystem
Water Cycle
the continual movement of water between the land, ocean, and the air
Abiotic Factor
Non living
Producer
an organism that makes its own food; an organism that does not consume other plants or animals
Carbon Cycle
a natural cycle in which carbon compounds mainly carbon dioxide
Predator
an animal that hunts and eats another animal
Prey
an animal that is hunted and eaten by another animal
Succession
the sequence of communities that develop in an area
Levels of Organization
coordinates that work together for the proper functioning of the organism
Lab Safety rules
activities that can also present environmental health risks
Metric system
the decimal measuring system based on the meter,
Dependent variable
A value that depends on another
Independent variable
A value that does not depend on another
Constant variable
A variable whose value cannot be changed once it has been assigned a value.
Hypothesis
a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
