How long can a human stay up

The body of water found at number 4 on the map above is the

In which of the following relationships is one organism always benefited while the other organism is always harmed

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