APFIVE Indicator Species and Water Quality
Following recent upstream development, a stream’s stonefly nymph population has been observed to decline. As an indicator species, this trend most likely signifies which of the following changes in water quality?
A
Declining dissolved oxygen levels
B
Natural succession of the aquatic ecosystem
C
Higher nutrient availability
D
Increasing water temperature
Question Leaderboard
| Rank | |||||
|---|---|---|---|---|---|
| #1 | shivamshamanur190 | 1 | 1 | 0m 18s | 82 |
| #2 | rehhan.623.2027 | 1 | 1 | 0m 22s | 78 |
| #3 | chloeh59 | 1 | 1 | 1m 27s | 13 |
| #4 | andymeng14440 | 1 | 1 | 4m 35s | -175 |
| #5 | kamaliganesh13 | 3 | 4 | 29m 28s | -1,478 |
Items per page:
10
1 – 5 of 5