Final answer:
The silver carp population continues to grow in the Mississippi River System due to their rapid reproduction and lack of limiting factors such as natural predators.
Step-by-step explanation:
The continuous growth of the silver carp population in the Mississippi River System can be best explained by C. the carp have many offspring and have few limiting factors. Silver carp are rapid reproducers, laying hundreds of thousands of eggs several times a year, providing them with a high potential for population increase. Furthermore, silver carp are voracious eaters, consuming up to 20% of their body weight in phytoplankton, including algae, every day. This intense feeding reduces the availability of food for native species and can lead to their decline. With the absence of natural predators in the Mississippi River to keep their numbers in check, silver carps are able to multiply uncontrolled and spread to new areas, especially during floods that connect different water bodies.