Abiotic and Biotic Factors Flashcards
Abiotic factors
A non-living factor of the environment
Biotic factor
A living factor of the environment
Ecosystems have three main components
1 physical surroundings
2 living organisms
3 living and non- living factors that make up the environment
What are the 6 main abiotic factors
Water Temperature Fire Light Soil type Gas levels
What are the 6 biotic factors
Competition Predation Mutualism Symbiosis Commensalism Parasitism
What are the 2 factors that influence organisms
Abiotic and biotic factors
Adaptations
Any feature of behaviour of a plant or animal the helps it survive and reproduce in a particular way.
Competition
When 2 or more organisms rely on the same environment resource
Predation
Behaviour of one animal feeding on another
Symbiosis
The close relationship of 2 dissimilar organisms
Mutualism
A symbiotic relationship where both organisms benefit
Commensalism
A symbiotic relationship where one organism benefits and one does not benefit but is unharmed
Parasitism
A symbiotic relationship where one organism benefits and one is harmed
Water- one way in which this factor can affect living organisms.
Water is essential for the chemical reactions in the cells of living things
Temperature- one way in which this factor can affect living organisms.
Heat affects the speed of chemical reactions in the cells. As the temperature increases the rate of reaction increases.
Fire- one way in which this factor can affect living organisms.
Some plants flower better after a fire and some drop their seeds.
Light- one way in which this factor can affect living organisms.
Light is necessary for photosynthesis, the process by which plants manufacture their food materials.
Soil type- one way in which this factor can affect living organisms.
Some have more nutrients for example manure and some soils hold water better than others.
Gas levels- one way in which this factor can affect living organisms.
Most organisms require oxygen for respiration. There usually enough in the air for organisms but the amount in water can change
What are the tree types of adaptations
Structural
Behavioural
Functional
Structural adaptations
A structural adaptations is a body part that helps an organism to survive
Behavioural adaptations
Behavioural adaptation is a feature is a feature of an organisms habitat, actions or way of life that helps it.
Functional adaptations
A functional adaptations is a feature of the way an organisms body works.
Ecosystem
A place where organisms and their physical surroundings from a balanced environment that is different from others near by.
