There are currently two, large, permanent bridges that span the Panama Canal. The bridges are about 8 miles apart. If snapping shrimp avoid swimming at night and avoid swimming under shadows, then what do these bridges represent for the snapping shrimp?
A) sources of refuge
B) geographic barriers
C) sources of a hybrid zone between the two bridges
D) sources for increased gene flow

Question

Quizplus · Accepted Answer

The bridges likely represent geographic barriers for the snapping shrimp, as they are separated by a distance that may be difficult for the shrimp to cross and may create a fragmented habitat.

There Are Currently Two, Large, Permanent Bridges That Span the Panama