Ecology
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What is a biosphere
Biosphere is the parts of the earth where life exists
What are ecosystems
Natural system which living and non living organisms interact
What is a community
an interacting group of various species in a common location
What is a population
a group of organisms of a single species that can interbreed and live in the same time in the same environment.
Abiotic
Non-living factors that impact the ecosystem
Biotic
Living factors of an ecosystem
Ecology
Study of the relations of the organisms to one another and to their environments
Herbivore
Only eats plants
Omnivore
Eats both plants and meat
Carnivore
Only eats meat
Decomposed/Detritivores
Eats dead organic matter
Detritus
Remains / waste matter of dead organisms
What’s do decomposes do for the ecosystem
They produce nutrients needed for growth and repair
Food chain definition
Sequence of feeding relationships describing which organisms eat eachother
What will weaker members of a species do when food is scarce
-They leave to find food -Also more susceptible to disease - targeted by predators and parasites -forced to live in dangerous areas -their young exposed to danger
What does competition between communities do for the environment
-diff species compete for food / shelter -competition balance ecosystem
Host
Plant or animal in which a parasite lives
Habitat
Places where organisms live, eat and reproduce
What is symbiosis
2 organisms that live together temporarily or permanently, at least one organism must benefit
What are the three types of symbiosis
Mutualism;Commensalism;Parasitism
Mutualism definition
Both organisms benefit eg ox pecker+ox Anenome + Clownfish
Commensalism definition
One organism benefits other is unaffected eg Cattle + Egrets Remora + Shark (Remora not cleaner fish)
Parasitism definition
One organism benefits the other is harmed eg Tick, Acacia + Ants
What are structural adaptations
The way something is made