Silverfish insects travel with army ants to share the food the ants leave behind after eating. This is an example of ____.
A. mutualism
B. commensalism
C. succession
D. parasitism
E. specism
Answer: B
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In which of these settings would a river or lake lose water to groundwater?
A) Where the water table adjacent to the river is higher than the river B) Where a lake is directly underlain by an impermeable layer C) Where a river flows across an area where the water table is far beneath the surface D) None of these are correct.
Describe the process meteorologists use to locate fronts
What will be an ideal response?
What bowl-shaped basins are part of glaciated landscapes in the Northwestern Uplands?
A) fjord B) cirque C) moraine D) glaciated valley E) glacial delta
In addition to environmental mismanagement, Lake Baikal's fragile and unique ecology is seriously threatened by
A) tourism. B) climate change. C) gold mines. D) oil refineries.