Question

The zebra mussel is an invasive species that is thought to have entered the great lakes accidentally attached to the bottom of the ship. The zebra mussel lays 1 million eggs annually, taking over many great lakes' ecosystems. The zebra mussel eats larval fish and algae. Which statement is NOT a possible effect the zebra mussels would have ibn the birds native to the great lakes?

A. The birds must move to new locations to find new food sources since they are all competing for the fish larva.
B. The birds decide to the zebra mussels, changing their diet
C. The bird population will decrease due to the increasing number of zebra mussels.
D. The bird population will become extinct

Answer 1

D. The bird population will become extinct is not a possible effect the zebra mussels would have on the birds native to the Great Lakes. While the zebra mussels may have a significant impact on the ecosystem and the food chain, it is unlikely that they would cause the extinction of an entire bird population. However, the other statements are possible effects that the zebra mussels could have on the birds, such as changing their diet or causing them to move to new locations to find food.