Question

True story! In some lakes and reservoirs, anglers fish a lot for bass. The fish in these lakes are said to be "heavily pressured."Bass that get caught may be kept for food or trophies, or even if they are released, they may be stressed or injured by the experience. Sometimes males that get caught will abandon their nests, which often causes their eggs or offspring to be eaten.The chance that a bass will get caught is partly a result of genetically based personality differences among the fish: "bold" fish are curious and bite almost anything that moves, including fishing lures. "Shy" fish are much less likely to investigate or bite strange objects.Which personality is favored by heavy fishing?Group of answer choicesThe bold, aggressive personality type works better under heavy fishing pressure. These fish will take over in a "heavily pressured" lake and will become the norm.The shy personality type works better under heavy fishing pressure. Over time the bass in a "heavily pressured" lake will tend to become more shy and harder to catch.The personality of a fish doesn't affect its survival. There is no selection at work in this example.

Answer 1

We must remember that many conditions work together to exert a selective pressure and not only a single trait determines this, nonetheless, in the present example, but we can also see that those that are bold easily can bite the bait, so makes them vulnerable to fishing even if they support better stress, meanwhile those shy are more elusive and even if they do no deal well with stress are harder to catch and more careful so, the best answer is the second option.