Which of the following is not an intentional way of introducing nonnative species into an ecosystem?

a.
Restocking an overfished lake
b.
Introducing species of high value for harvesting
c.
Farming of species that are economically important
d.
Release of some species from an aquarium
e.
Recreational boating

During a fierce storm a large number of tall trees on an island are uprooted by the wind and die. most of the trees on the island are now short trees and produce seeds that grow into short trees. what concept is shown in this example? question 5 options: natural selection artificial selection genetic engineering gene splicing