Question
These animals were used as model organisms in Kirsten Pohlmann’s research on nocturnal aquatic predation behaviors. For 10 points each:
[10e] Name these ray-finned fish known for their long whisker-like barbels.
ANSWER: catfishes [accept Siluriformes; accept Nematognathi]
[10h] After disabling this organ system’s function using cobalt chloride, Pohlmann observed that many catfish lost the ability to track the wake of their prey. This system, which is composed of rows of neuromasts, helps fish sense hydrodynamic information such as current direction.
ANSWER: lateral line system [or lateral line organ]
[10m] In other fish, removing the lateral line system results in the inability to perform this social behavior. This behavior is characterized by coordinated swimming between members of a fish community or aggregation.
ANSWER: schooling [accept shoaling; accept social grouping]
<Kane Nguyen, Biology>
Summary
| 2024 Penn Bowl CWRU | 11/02/2024 | Y | 1 | 20.00 | 100% | 100% | 0% |
| 2024 Penn Bowl Chicago | 11/02/2024 | Y | 1 | 30.00 | 100% | 100% | 100% |
| 2024 Penn Bowl Texas | 11/02/2024 | Y | 1 | 20.00 | 100% | 100% | 0% |
Data
| Carnegie Mellon | Michigan A | 10 | 0 | 10 | 20 |