Describe in detail what would happen to all trophic levels in your choice of ecosystem (ocean, desert, etc) if an invasive species was introduced that consumed the primary producers at the bottom of the energy pyramid. What would happen to each trophic level? How would a species have to adapt in order to survive?

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human impact on the environment can be seen in the deterioration of the !

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stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms

the atomic number of magnesium is 12. its nucleus must contain 12 protons and no electrons. the atomic number of an atom is determined by the number of protons.

magnesium is an electrolyte injection commonly used to treat low magnesium levels in your blood. it is also used to prevent or control seizures in women with preeclampsia or eclampsia.

d. changes in climate and historical records

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