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10 terms

Bio - Ecology Set 2

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Matter moves through ecosystems in food chains or biogeochemical cycles
biogeochemical cycles
omnivore
Organism that eats both plants and meat
transpiration
Process in which water from plant leaves evaporates into the atmosphere
How does the way matter flows through an ecosystem differ from the way that energy flows?
-Energy is passed in one-way direction through the biotic (living organisms) in an ecosystem
- Matter cycles within and between biotic and abiotic parts of an ecosystem.
denitrification
Process in which bacteria convert nitrates into nitrogen gas and release it into the atmosphere
Which biogeochemical cycle does NOT involve a stage where the chemical enters the atmosphere
phosphorus
Limiting nutrient
Nutrient which is scare or cycles slowly that controls population growth
Give an example of a decomposer
Bacteria or fungi (break down organic material and absorb the nutrients)
Which group of organisms is always found in the first trophic level of every food chain or web?
Autotrophs or producers
Why is only about 10% of the energy in an organism transferred in a food chain?
Some is used by organism for life processes such as movement, transport, metabolism, growth, reproduction, and rest is lost as HEAT