≡Smee is walking on a trail in the Everglades when he comes to an alligator-infested lake. He wants to build a bridge across the
lake from point B to point A. He walks 36 feet due east of point B and marks another spot, point C, where he drives a stake into the ground. He walks an additional 9 feet due east to point D, then turns due south. He walks 12 feet south to point E, so that points A, C, and E are collinea
Ecology is the study of ecosystems. That is, ecology is the study of how living organisms interact with each other and with the nonliving part of their environment.
