Thick rigid cell wall is not characteristic of a parenchyma cell
The slightest change in pH can destroy the substance or organism. The pH of a cell's interior helps regulate the cell's chemical reactions. For example, the pH of blood is 7.4, if blood falls to 6.8 or lower or 8.2 or higher, it results in death.
Answer:
a biological community of interacting organisms and their physical environment.
Explanation:
Answer:
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