Biotic factor Flashcards
A living component in an ecosystem.
Abiotic Factor
Non-living component of an ecosystem. Temperature
Population
The number of organisms of the same species that live in the same area at the same time.
Ecological community
The different species that interact within a specific location.
Biotic factor
Living component of an ecosystem. Tiger
Inputs, processes and output
Input: fuels a process
Process: Any movement, energy transfer or interaction within a system.
Output: result of process
Carbon cycle
photosynthesis, respiration, burning fossil fuels, ocean surface, sinking
Nitrogen cycle
Denitrification, nitrogen fixation, ammonia
stakeholders
A person who has a view/position in a project going ahead
Anthropocentric
Views humans as the most important species.
Ecocentric
Value humans and all other living organisms as fairly equal
Technocentric
Value ai/robots as the most important
Photosynthesis
Carbon is drawn in by plants and used as carbohydrates
Cellular respiration
carbon is breathed out by organisms
Nitrogen fixation
When microbes or lightening convert nitrogen into usable compounds in the soil.
Food chain/web
shows flow of food as a diagram
Lithosphere
Land, rocks, soil
Biosphere
Living things
Hydrosphere
Water
Atmosphere
The layer of gases surrounding the earth.
Layers of atmosphere
Troposphere, stratosphere, mesosphere and thermosphere
Primary succession
When species become established on an unvegetated surface
Secondary succession
When new species colonise an area that had already supported a biological community but has undergone change, such as deforestation.
What system is earth?
closed system
How much sun energy do the poles receive?
$0%
Sedimentary rock
Forms from the deposits of eroded rock and compacts.
Igneous rock
Formed from the cooling of molten rock
Metamorphic rock
When igneous or sedimentary rocks undergo changes due to heat and pressure
carbon capture method
carbon is captured from the atmosphere and permanently stored underground
water desalination
treating water multiple times until it can be used again
water reclamation
Reusing and treating water that was once unusable.
List all short-term changes
Day and night
Lunar cycles
Seasons
List 2 medium-term changes
ecological succession
drought
List one long-term change
evolution
La-Nina
colder temperatures, high rainfall
El-Nino
warmer temperatures, less rainfall
crepuscular, provide example
organisms that are more active at dusk and dawn. kangaroo
diurnal, provide example
organisms that are more active during the day. kookaburra
nocturnal, provide example
organisms that are more active during the night. owl
ecology
The study of ecosystems
biomes
A large region of earth that has a certain climate and certain types of living things. e.g. tundra
paleoclimatology
The study of previous climates
Open system
Exchange energy and matter
Closed system
Exchange energy but not matter
Benefits of water
- good solvent
-high heat capacity
-it flows
infrared
Heat on the surface of earth
ultraviolet
Harmful radiation heat which only a small proportion passes through the stratosphere
greenhouse gases
Gases which are trapped in the troposphere.
circadian rhythm
the physical, mental and behavioural changes over a 24-hour period.
