<span>Bio-indicators are macro-invertebrates that detect Water Quality based on how tolerant they are to pollution. The number of species of each type of Bio-indicator (pollution tolerant, intolerant, and semi-tolerant) will calculate the index of the water.</span>
Answer:
All organ system(s) are important for proper functioning of the organism but I think Circulatory System is the most important one...!
Explanation:
Because the organism will die without proper blood circulation...!
Im pretty sure the answer would be that <span>They help meteorologists see areas of equal pressure. hope this helped!</span>
