Test: Intro to science
Subject:
Biology [1]
1. The work of scientists begins with a. testing a hypothesis. b. careful observations. c. creating experiments. d. drawing conclusions. 3. A controlled experiment allows the scientist to isolate and test a. a conclusion b. a mass of information. c. several variables. d. a single variable. 5. A well-tested explanation that unifies a broad range of observations is a(an) a. hypothesis. b. theory. c. inference. d. controlled experiment. 6. All of the following are characteristics of all living things EXCEPT a. growth. b. reproduction. c. movement. d. use energy. The process by which organisms keep their internal conditions relatively stable is called a. homeostasis. b. evolution c. metabolism. d. photosynthesis.