Chapter 1, Problem 8
DRAW IT With rough sketches, draw a biological hierarchy similar to the one in Figure 1.3 but using a coral reef as the ecosystem, a fish as the organism, its stomach as the organ, and DNA as the molecule. Include all levels in the hierarchy.
Video transcript
Which of the following statements best distinguishes hypotheses from theories in science? a. Theories are hypotheses that have been proved. b. Hypotheses are guesses; theories are correct answers. c. Hypotheses usually are relatively narrow in scope; theories have broad explanatory power. d. Theories are proved true; hypotheses are often contradicted by experimental results.
Which of the following is an example of qualitative data? a. The fish swam in a zigzag motion. b. The contents of the stomach are mixed every 20 seconds. c. The temperature decreased from 20°C to 15°C. d. The six pairs of robins hatched an average of three chicks each.
Which sentence best describes the logic of scientific inquiry? a. If I generate a testable hypothesis, tests and observations will support it. b. If my prediction is correct, it will lead to a testable hypothesis. c. If my observations are accurate, they will support my hypothesis. d. If my hypothesis is correct, I can expect certain test results.