Gene flow is the movement of genes into and out of a gene pool.
Newton's third law was that for every action there is an equal and opposite reaction.
An example might be you put your finger against a wall. There is the force of your finger on the all but also the force of the wall on your finger, the force goes both ways.
Answer: My answer is the esophagus
Explanation: The esophagus is basically a fibromuscular tube that helps food get from the pharynx all the way into the stomach. I hope this could help a bit!
The factor that will prevent the species from becoming an invasive one is predation.
If the species of fish introduced is an apex predator, there will be no organisms present to keep the population of the fish in check. Moreover, if the introduced species has a selective advantage over those that it shares the same niche with, then it is more likely to oust these species from the food chain by consuming all of their resources.
