Milestone revision Flashcards
Define ecosystem
The interaction of a community of living organisms with non-living factors in the enviroment
Define a stable community
A community of which all the species and environmental factors are all in balance with each other.
Define interdependence
When different species rely on each other in an environment
Define adaptations
Features that help an organism survive in a particular enviroment
Define habitat
natural environment fro an organism
Define competitions
When organisms fight over stuff i an enviroment
Define biodiversity
The variety of all the living organisms in an environment or the world
What does Biotic mean
when something is living e.g bamboo
What does abiotic mean
when something is not living e.g a rock
Define producer
An organism that makes its own food through photosynthesis
Define consumer
An organism that consumes something
Define predator
An organism that hunts
Define prey
An organism that is hunted
Define the transect sampling method
samples at regular spaces across a strip to measure the variation of a species
Define the quadrat sampling method
a metal square is placed over an area to determine an estimate of the population of the species
What are the two ways carbon can enter the carbon cycle from the atmospshere
The ocean and plants
Describe the carbon cycle
The flow of carbon dioxide through different things such as the atmosphere and animals
Describe the water cycle
The flow of water from clouds through plants, the ocean and the ground
Name the pollution types
Water, Air and Land
Define decomposers
Microorganisms that respire on dead matter and breaking down to be recycled
define decomposition
The breaking down of dead matter so nutrients can be recycled
Define compcost
A natural fertilizer made up of decomposed plants
Define global warming
Extreme weather caused by an increase of green house gases in the atmosphere
