Definition
Key Concept
Knowing Your Cycles
The Energy of Life
Miscellaneous
100
The scientific study of interactions among organisms and between organisms and their environment, or surroundings.
What is ecology?
100
Photosythesis
What is the autotrophic ability to harness solar energy?
100
List the four nutrient cycles.
What are the Carbon, Nitrogen, Phosphate, and Water Cycles?
100
The amount of energy available in each trophic level.
What is 10 percent?
100
The way that plants take in both phosphates and nitrates into their bodies.
What are roots, from the soil?
200
Uses energy taken in from the environment to convert inorganic molecules into complex organic molecules.
What is an autotroph?
200
Algal Blooms
What is the result of an immediate increase in the amount of algae and other producers?
200
78% of our atmosphere is made up of this.
What is nitrogen?
200
The way in which energy flows through the ecosystem.
What is through the sun, inorganic compounds, producers, consumers, then decomposers?
200
We rely on these to give us nitrogen, because we are not able to take the chemical in ourselves.
What is bacteria?
300
The process of converting nitrogen gas into ammonia.
What is nitrogen fixation? (nitrification)
300
Biosphere
What is the name of the combined portions of the planet in which all life exists, including land, water, and air, or atmosphere?
300
Every living organism needs nutrients for this reason.
What is the need to build tissues and carry out essential life functions?
300
Give an example of a food chain.
Sun - Producers- First Level Consumers- Second Level Consumers- Third Level Consumers- Decomposers
300
The main energy source for life and the amount that is used by living organisms.
What is sunlight? What is used less than one percent by living organisms?
400
The substance that limits an ecosystem that is scarce or cycles very slowly.
What is a limiting nutrient?
400
Biogeochemical Cycles
What is the name of the collection of cycles that connect biology (life), geology (earth), and chemical (chemical processes) aspects of the biosphere?
400
Name three steps of the water cycle and explain them.
What is Evaporation- water changes from a liquid form to an atmospheric gas. Transpiration- water evaporates from the leaves of plants. Condensation- water changes from an atmospheric gas to a liquid. Precipitation- water falls in the form of rain, snow, sleet, or hail.
400
Pyramid of Numbers
What is the process of basing the energy in an ecosystem off of the number of individual organisms in the ecosystem.
400
Name the different types of heterotrophs.
What are herbivores, carnivores, omnivores, detritivores, and decomposers?
500
The process where an organism uses chemical energy to produce carbohydrates.
What is chemosynthesis?
500
Denitrification
What is the process by which bacteria convert nitrates into nitrogen gas?
500
One of the cycles not present in the biosphere. Name where it primarily used.
What is phosphate? What are DNA and RNA?
500
Biomass definition and the method by which it is measured.
What is the total amount of living tissue within a given trophic level? What are grams?
500
The reason that only ten percent of energy is available in each trophic level.
What are everyday life processes?
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