When the comb jelly, mnemiopsis leidyi, was introduced into the black sea, its population exploded to 500 comb jellies per cubic yard in 1988. the jellies devoured all the zooplankton and fish larvae, drastically reducing the numbers of the native fish populations. this situation demonstrates .the difference between biotic and abiotic factors in an ecosystem. b.effects of local evolution or migration on an ecosystem. c.the impact of removing or adding organisms to an ecosystem. d.the types of interactions between organisms in an ecosystem. select the best answer from the choices provided

c.the impact of removing or adding organisms to an ecosystem

Explanation:

Species that are introduced to new ecosystem by activity of the human are called introduced species or non-native species. As a consequence of their introduction, existing ecosystem might get affected and this is the negative impact, like in the case above. Introduced species might become invasive species when they spread too much.

the framers of the constitution insisted that federal judges be nominated instead of elected due to their desire to have judges above the shifting whims of the masses.

the hope, whether achieved or not, was that federal judges would only be beholden to the law and that by not having judges be elected, they would be protected if that law dictated an outcome that ran counter to popular opinion.