Question

According to the passage, the author implies that foreign ecosystems have which potential effect on shorebirds?A. They can make a bird more vulnerable to predators.B. They can expose shorebirds to foreign toxins.C. They can diminish a bird’s ability to navigate.D. They can lead to a reduction in the bird’s weight.E. They can cause a bird to become separated from its flock.

Answer 1

Answer:

D. They can lead to a reduction in the bird’s weight.

Explanation:

Judging from the passage

...A recent study found that, out of those shorebirds that were unable to migrate, some WEIGHED as much as 20% LESS than the average migrating bird of their species...