Chapter 1 Skill A-15.mp3: New words: Organism (n): a living thing, such as a plant or animal Observe (v): to watch and study Cactus (n): a plant that grows sharp spines on its surface and is usually found in deserts Member (n): an individual that is part of a group Community (n): a group of plants and animals living and interacting with one another in an area Questions: What aspect of ecology does the professor mainly discuss? A. Branches of the science. B. An important theory in ecology. C. Key terms and examples. D. A list of plants and animals in an area