Show:
Energy Flow
Food Chains and Webs
Water Cycle
Carbon Cycle
Nitrogen Cycle
100
Community of organisms and their physical environment
What is an ecosystem?
100
Producers
What is the first link in a food chain that get energy from the sun?
100
When liquid water warms and forms water vapor
What is evaporation?
100
Photosynthesis
What is the process through which plants use carbon dioxide to build organic molecules?
100
Bacteria converts nitrates into nitrogen gas
What is dentrification?
200
Abiotic factors are nonliving while biotic factors are living.
What is the difference between biotic and abiotic factors?
200
Herbivores
What animals are typically primary consumers?
200
Groundwater
Precipitation that percolates into the soil becomes...?
200
Combustion, burning of fossil fuels, decompostion, and cellular respiration.
What steps uses oxygen and release carbon dioxide?
200
Plants get nitrogen by absorbing nitrates or ammonia
What is assimilation?
300
Producers, consumers, and decomposers
What What are the three main links in energy flow?
300
Carnivores and omnivores
What types of animals are secondary and tertiary consumers?
300
Atmosphere, land, and oceans
What does the water cycle continuously move water between?
300
Photosynthesis
What is the only step that uses carbon dioxide and releases oxygen?
300
Bacteria change ammonia into nitrates
What is nitrification?
400
10% of energy transfers to the next level and 90% is used or released as heat
What is the rule of ten percent?
400
Producers
What is the lowest level of any ecosystem occupied by?
400
Transpiration
What is condensation in plants known as?
400
Carbon containing molecules
What are all living things made up of?
400
Bacteria changes nitrogen from animal waste or decaying organic matter into ammonia and return it to the soil
What is ammonification?
500
A diagram that shows an ecosystems loss of energy, which results as energy passes through an ecosystem's food chain
What is the energy pyramid?
500
A food chain shows energy flow from one trophic level to another. A food web is food chains that are interconnected.
What is the difference between a food chain and food web?
500
Water evaporates from bodies of water or transpires from plants, condensates into clouds, precipitates to land, runs off into water ways or percolates into the ground, and then the cycle starts over again.
Describe the water cycles main steps.
500
Living things die and decay, carbon dioxide is released into the atmosphere, cellular respiration occurs releasing carbon dioxide, combustion occurs releasing carbon dioxide, and the burning of fossil fuels releases carbon dioxide into the atmosphere while plants use the carbon dioxide for photosynthesis
Describe the carbon cycle steps.
500
Dentrification converts nitrates into nitrogen gas, assimilation allows plants to get nitrogen, nitrification changes ammonia into nitrates, ammonification changes nitrogen into ammonia, and nitrogen fixation changes nitrogen gas into ammonia
Describe the steps of the nitrogen cycle.