The chart below shows several species found in a pond ecosystem and the pH levels in which the species can survive. The norral pH of the pond is 6.5.
If the pH of the pond fell to 5.5 due to acid rain, which of the species shown in the chart would die?

the answer is "a.) well–developed vascular system."

explanation:

bacteria could be both, harmful and to us. harmful bacteria could make us sick and probably even by getting the chances of getting a disease, but good bacteria fight it off with your immune system. there is always bacteria everywhere we go. we need to make sure to wash our hands after using the restroom, before eating, after eating, after petting an animal too. so you see, bacteria is everywhere and is harmful or . i hope this . : ) : ) : )

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