Semester 1 Study Guide Flashcards
Energy pyramid
A model that shows the available amount of energy in each tropic layer in the ecosystem
Food chain
A model that shows one set of feeding relationships in a given area
Food web
A model that shows many different feeding relationships among living things
Producer
An organism that eats other living things to get energy; it does not consume other plants or animals
Consumer
An organism that eats other living things to get energy; an organism that does not produce it’s own food
Biome
A major ecological community such as grassland, tropical rain forest, or desert
Ecology
A branch of biology that deals with the relations of organisms to one another and to their physical surroundings
Nitrogen cycle
A process in which nitrogen in the atmosphere and enters the soil and becomes a part of living organisms then eventually returns to the atmosphere
Water cycle
The continual movement between the land, ocean, and the air through predictable physical processes
Carbon cycle
A natural cycle in which carbon compounds, mainly carbon dioxide, are incorporated into living tissue through photosynthesis and returned to the atmosphere by respiration, decay of dead organisms, and the burning of fossil fuel
Biotic factors
Factors for all parts of an ecosystem
Abiotic factors
Non-living factors for all parts of an ecosystem that does not look as it did when it was alive
Predator
An animal that is hunts and eats animals
Prey
An animal that is hunted and eaten by other animals
Succession
The sequence of communities that develop in an area
Levels of orginazation
Four levels which consist of the population, community, ecosystem, and biosphere. The ecosystem is is all the living things in an area interacting with all of the abiotic parts of the environment
Lab safety rules
Rules that are used in every lab
Metric system
Uni-, mono-, bi-,tri-, quadra-, quint-, penta-, hex-, sex-, hept-, sept-, Octo-, novem-, deka- or deca-, cent-, hecto-, milli-, kilo-, mega-, and giga- are all of the metric system
Dependent variable
A variable that is of only measuring
Independent variable
The variable that always changes
Constant variable
The variable which never changes
Hypothesis
A supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation
