chapter 1 - foundations of ESS Flashcards
What are producers
an organism that makes its own food (i.e glucose)
What is a biotic factor?
The living part of an ecosystem
What is an abiotic factor?
The non-living part of an ecosystem
What is a transfer?
the change in location within the system but no change in state
i.e water flowing from groundwater into a river
What is a transformation?
the formation of new products
i.e photosyntheses
What is an open system?
exchanges both matter an energy with thier surroundings
(ecosystem)
What is a closed system?
Exchanges only energy but not matter with their surroundings
What are isolated systems?
These do not exchange either matter or energy with their surroundings
(e.g the universe)
What is entropy?
a measure of the amount of chaos in a system
What is equilibrium?
the state of balance among the components of a system
What is feedback?
When part of the output from a system returns as an input
Positive feedback is feedback that increases _____; it promotes _______ away from an ______.
