How do bio-indicators determine the health of a water system?
A. A few species of macro-invertebrates will be present in a healthy body of water.
B. Many different species of macro-invertebrates will be present in a healthy body of water.
C. No species of macro-invertebrates will be present in a healthy body of water.
D. There is no relationship between the number of species of bio-indicators and the health of a body of water.
Answer:B
How do bio-indicators determine the health of a water system?
A. A few species of macro-invertebrates will be present in a healthy body of water. B. Many different species of macro-invertebrates will be present in a healthy body of water. C. No species of macro-invertebrates will be present in a healthy body of water. D. There is no relationship between the number of species of bio-indicators and the health of a body of water.