Professor ahmed brings 2 year olds into a lab and has them interact with toys. professor ahmed records which toys the children play with for the longest. this is an example of what

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