Question

fisherman have harvested certain fish to the point where the population of that fish is decreasing. this level of direct harvesting could cause
a the restoration of environmental stal
b ecosystems to be severely damaged
c ecosystems to be improved for gener
d all other fish species to increase in number.

Explanation:

When fishermen harvest fish to the point of population decline, it disrupts the ecosystem. A stable ecosystem has a balance of species. Removing one species (through over - harvesting) can cause a chain reaction. For example, if a fish species that is a prey for another species declines, the predator may also be affected. Also, if the over - harvested fish was a predator of some smaller organisms (like algae - eating fish), the algae may overgrow. This imbalance can lead to severe damage to the ecosystem.

• Option A: Over - harvesting is not restoration. Restoration would involve actions to bring back a healthy population, not deplete it.
• Option C: Over - harvesting is not an improvement. It causes a loss of a species which is a negative impact on the ecosystem.
• Option D: It is unlikely that all other fish species will increase. The ecosystem is interconnected. The decline of one species can lead to the decline of dependent species (if they are predators) or over - growth of prey species (which may then deplete resources for other species).

Answer:

B. ecosystems to be severely damaged