Biology, 28.12.2019 01:31 devbar3416
Aone-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.) an uncommon species has become more numerous
b.) an increase in low-tolerance species has occurred
c.) a decrease in high-tolerance species has occurred
d.) phylogenetic diversity has occurred
e.) the biodiversity of the pond has decreased
Answers: 3
Biology, 21.06.2019 19:00
The following image is of a diatom. it lives in water and gets food from photosynthesis. it is encased in a hard shell made of something similar to glass or sand . a diatom is a(n) because it has a) multi-celled organism; specialized parts. b) vertebrate; a skeleton. c) insect; an exoskeleton. d) single-called organism; only one cell.
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Biology, 22.06.2019 02:40
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Biology, 22.06.2019 06:40
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Aone-hectare pond is sampled in early september. the sample yields 1 small catfish as well as 17 ben...
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