How does what is found on the pool bleachers compare to what is found on the stadium bleachers

How can an organ, such as the lungs, work for multiple body systems?

Which of these is a provisioning service people get from the ocean

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