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Vocabulary
What is Ecology?
Producers/Consumers
Flow of Energy
Cycles of Matter
100
collection of all organisms in one place plus their environment
What is an ecosystem?
100
observing, experimenting, and modeling
What are the 3 approaches to ecology research?
100
Organisms that produce their own food.
What are autotrophs?
100
Oraganisms use chemical energy to produce carbohydrates.
What is chemosynthesis?
100
process of converting nitrogen gas into ammonia
What is nitrogen fixing (fixation)?
200
collection of all the organisms that live in one place
What is a community?
200
contains the combined partions of the planet in which life exists (land, water, air)
What is the biosphere?
200
The main energy source for life on earth.
What is sunlight?
200
Each step in a food chain or food web.
What is a trophic level?
200
processes including precipitation, evaporation, runoff, and transpiration?
What is the water cycle?
300
a chemical substance needed to sustain life which is in small supply or cycles very slowly
What is a limiting nutrient?
300
the scientific study of interactins among organisms & between organisms and their environment
What is ecology?
300
Organisms that rely on other organisms for energy and food.
What are heterotrophs?
300
Total amount of living tissue within a given trophic level.
What is biomass?
300
carbon cycle, nitrogen cycle, and phosphorus cycle
What are 3 nutrient cycles in biosphere?
400
process where soil bacteria convert nitrates into nitrogen gas
What is denitrification?
400
a group of ecosystems that have the same climate and similar dominant communities
What is a biome?
400
These heterotrophs eat both plants and animals.
What are omnivores?
400
A diagram that shows the relative amounts of energy or matter contained within a trophic leven in a food chain or food web.
What is ecological pyramid?
400
carbon, oxygen, hydrogen and nitrogen
What are four elements that make up 95% of body?
500
rate at which organic matter is created by producers
What is pimary productivity?
500
a collection of all the organisms that live together with their non-living, physical environment
What is an ecosystem?
500
Dead animal and plant remain.
What is detritus?
500
shows relative number of individual organisms at each trophic level.
What is pyramid of numbers?
500
matter moves through the ecosystem in these
What are biogeochemical cycles?