White perch is a fish that is native to atlantic coastal regions and is invasive to the great lakes. it feeds on native species and is thought to be the cause of decline of the great lakes walleye fish populations

ANSWER

The correct answer is B.

EXPLANATION:

Here is the full question with the options attached to it:

White perch is a fish that is native to Atlantic coastal regions and is invasive to the Great Lakes. It feeds on native species and is thought to be the cause of the decline of the Great Lakes walleye fish populations. What was most likely its mode of introduction?

A. Produce brought from the eastern states

B. Trapped in a ship's ballast or a water tank

C. Trapped in a cargo crate carrying nonperishable items

D. Luggage brought in an overseas flight.

An invasive specie refers to a living organism that is not native to a particular environment but is brought to that environment either intentionally or accidentally.

Presence of invasive specie is usually detrimental to the overall well being of animals that are native of the concerned environment. Invasive specie can be introduced into an area via different methods. An example of invasive specie is White perch fish. It was brought into the Great  Lakes accidentally trapped in ship's ballast or water tank.

the sphincter muscles at the end of the digestive tract is the anus.