Biology Flashcards
What is an ecosystem
All parts of biological community and environment.
What does biotic mean
Alive
What does abiotic mean
Not alive
What is competition
When two organisms compete for the same space, the same food at the same time
What is predation
When one organism consumes another as food
What is symbiosis
Close association of two separate species
Hag is the lithosphere
The ground part of the earth. Litho meaning stone
What is hydrosphere
The water sphere. Hydro meaning water
What is Atmosphere
The layer of air above the surface. Atmo meaning vapour
What is biosphere
The living surface of earth. Not always separate from other sphere.
What is evaporation
Water that is boiled into vapour.
What is transpiration
Water coming from plants
What is condensation
Converting vapour into rain
What is precipitation
The act of Rainfall
What is surface runoff
Water coming from mountains and running into rivers
How do humans impact carbon cycle.
We burn fossil fuels and breath out co2.
How do animals create carbon waste
By eating plants with carbon and creating waste from it.
How do trees impact carbon cycle
Turn co2 into oxygen
Why do plants and animals require nitrogen
To make dna and protein
What is nitrogen fixation and why does it happen
Because nitrogen has strong bonds, for plants and animals to use it it must be broken up. Nitrogen fixation is that transformation.
What is species diversity
Number of different species in ecoystem
What is genetic diversity
Difference among same species individuals in ecosystem