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Uranium is a possible polluting agent of the natural environment.
In a general sense, homeostasis is the property of a system, either open or closed, that regulates its internal environment and tends to maintain a stable, constant condition. More specifically, in science, homeostasis is the ability for something to maintain or return to an equilibrium state. Cellular homeostasis and natural evolution are examples of this.
It would be referred to as equilibrium. It has never, nor will it ever, be completely achieved.
They are the top predator in the natural environment and are needed to maintain that environment (in which humans also live) in a healthy state.
Something as close to their natural environment as possible.
There exists a natural equilibrium. It maintains the creation and depletion of ozone.
Environment, natural habitat, and ecosystem are a couple possible synonyms.
The five Hardy-Weinberg principles are:1. No mutations2. No natural selection3. random mating4. a large population5. no immigration or emigrationIt is impossible to have no natural selection in a natural environment because that would require all organisms to be equally fit. The only way to meet this principle is to have a population of genetically identical organisms which does not happen naturally. All five of these principles cannot be met in real life, but it may be possible to have a species in hardy- weinberg equilibrium in a lab situation.
Sea stars prefer a clean environment with a low salt content. They prefer an abundance of food, and like their environment to be as natural as possible.
Temperature
Temperature
Temperature