Answer :
The question is incomplete as it does not have the options which are:
a. A positive feedback loop
b. A negative feedback loop
c. Dynamic equilibrium
d. Homeostasis
Answer:
a. A positive feedback loop
Explanation:
A positive feedback loop is a system in which the end product of the system produces positive response and enhances the productivity of the reactants which produces the products.
The loop is formed which regulates the system in an organism internally and externally in the ecosystem. The positive feedback loop in the ecosystem has been explained in the question as to the invasive species continuously increase in number and the increased number also increases the reproductive rate of the species.
Thus, the selected option is correct.