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Biology 20: Energy and Matter Exchange in the Biosphere Exam Questions and Answers 100% Pass £9.63
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Biology 20: Energy and Matter Exchange in the Biosphere Exam Questions and Answers 100% Pass
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Biology 20: Energy and Matter Exchange in the Biosphere Exam Questions and Answers 100% Pass Dynamic Equilibrium - Describes any system with constant change in which the components can adjust to the changes without disturbing the entire system (constant change with continual adjustments) Close...

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  • January 8, 2025
  • 6
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • biology 20 energy and matter exchange in the bios

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  • Biology 20
  • Biology 20

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Biology 20: Energy and Matter
Exchange in the Biosphere Exam
Questions and Answers 100% Pass

Dynamic Equilibrium - ✔✔Describes any system with constant change in which the components can

adjust to the changes without disturbing the entire system (constant change with continual adjustments)


Closed System - ✔✔A system in which matter is not exchanged with its surroundings (energy can be

exchanged)


Open System - ✔✔A system in which matter and energy are exchanged with its surroundings


Biosphere - ✔✔The narrow zone around Earth that harbours life (composed of the lithosphere, the

hydrosphere and the atmosphere)


Biotic - ✔✔The biological, or living components, of the biosphere


Abiotic - ✔✔The non-living components of the biosphere (including chemical and physical factors)


Organism - ✔✔An individual animal, plant or single-celled life form


Population - ✔✔A group of individuals of the same species occupying a given area at a certain time


Community - ✔✔The populations of all species that occupy a habitat


Ecosystem - ✔✔A community and its physical and chemical environment; the functional unit of the

biosphere




Author. Emily Charlene, ©2025 All Rights Reserved.

, 2|Page


Biodiversity - ✔✔The number of species within an ecosystem; biological diversity


Food chain - ✔✔A sequence linking organisms that feed on each other, starting with a food source and

continuing in order with each consumer


Producer - ✔✔An autotroph; an organism that makes its own food


Consumer - ✔✔A heterotroph; an organism that must eat producers or other consumers to survive


Predator - ✔✔A species that feeds on another species, keeping the population of the prey in check


Prey - ✔✔A species that is targeted by a predator species, providing an important food source


Indicator species - ✔✔A species sensitive to small changes in environmental conditions; can provide an

early warning sign that the ecosystem balance is being perturbed


Herbivore - ✔✔An animal that eats only plants


Carnivore - ✔✔An animal that feeds only on other animals


Omnivore - ✔✔An animal that eats both plants and other animals


Detritus - ✔✔Waste from plants and animals, including their dead remains


Decomposer - ✔✔An organism that feeds on detritus; key importance for the recycling of matter


Habitat - ✔✔A place or type of environment with conditions suitable for the survival of an organism or

population of organisms


Ultraviolet Radiation - ✔✔Electromagnetic radiation from the Sun that can cause burning of the skin and

cellular mutations


Ozone - ✔✔An inorganic molecule composed of three oxygen atoms that can be found in the stratosphere

to help screen our harmful UV radiation




Author. Emily Charlene, ©2025 All Rights Reserved.

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