Question

Directions: Each of the questions or incomplete statements below is followed by five suggested answers or completions. Select the one that is best in each case A one-hectare pond is sampled in early September. The sample yields 1 small catfish as well as 17 benthic invertebrates that represent 10 species. If the pond is resampled a year later, which of the following would best indicate that the pond had been adversely affected by adjacent development?
A. Phylogenetic diversity has increased.
B. The biodiversity of the pond has decreased. C. An uncommon species has become more numerous.
D. An increase in low-tolerance species has occurred.
E. A decrease in high-tolerance species has occurred. ​

Answer 1

B.
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