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What is an abiotic factor? Example
a nonliving part of an organizims's habitit. ex...water, sunslight, oxygen
What is a species?
A group of orgnisms that are physically similar and can mate with each other and produce offspring that can also make and reproduce.
What is an ecosystem?
The community of organisms that live in a particular area, along with their nonliving surroundings.
What are some of the things that can happen to deer because of the limiting factor?
they can die, eat from crops, and/or live closer to humans.
What happens if humans do nothing with the deer population?
Deer will die of starvation or get diseases.
What is natural selection?
A process by which characteristics that make an individual better suited to its environment become more commom in a species.
What is an adaptation?
A behavior or physical characterists that allows an organism to live successfully in its environment.
What is competition?
The struggle between organisms to survive as they attempt to use the same limited resources.
What is a predator? Example
The organism that does the killing in a predation interaction. Ex. tiger shark
What are some adaptations of predators and prey?
Adaptation - cheetahs can run fast; Prey - smell spray of skunk
What is symbiosis?
A close relationship between two species that benefit at least one of the species.
What is a parasite?
.The organism that benefits by living on or in a host in a parasitism interaction.
What is succession?
A series of predicable changes in the community that happen over a period of time.
What is primary succession?
The series of changes that occure in an area where no soil or organisms exist.
What is secondary succession?
The series of changes that occur in an area where the ecosystem has been disturbed, but where soil and organisms still exist.
What is an energy pyramid?
A diagram that shows the amount of energy that moves from one feeding level to another in a food web.
How much energy is transferred from one level to another?
10% of energy is transerfered to other levels
What are the steps of the water cycle?
-precipitation...evaporation...transpiratation..condensation...then over again
What are the steps of nitrogen cycle?
Nitrogen moves from the air to soil to living things and back into the air.
Why does nitrogen need to be fixed?
Because most organisms can't use nitrogen gas, so nitrogen needs to be fixed.
Why is nitrogen important?
Because air is made up of 78% Nitrogen and nitrogen is necessary in the building blocks of matter that make up living organisms.
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