Question

Biology Chapter 1 Multiple Choice Identify the letter of the choice thar best completes the statement or answer the question — I. The work of scientists usually begins with a. testing a hypothesis. b. careful observations c. creating experiments d. drawing conclusions 2. Science differs from other disciplines, such as history and the arts, because science relies on a facts. c. observations d theories b. testing explanations. 3. You suggest that the presence of water could accelerate the growth of bread mold. This is a(an) a conclusion c experiment b. hypothesis. d. analysis 4. A hypothesis a can be completely proven. b. may be disproved by a single experiment. c does not have to be tested to be accepted as probably correct d. is a proven fact. S. Hypotheses may arise from a. prior knowledge. b. logical inferences. c. informed, creative imagination. d all of the above 6. Which of the following is a valid hypothesis for why a plant appears to be dying? a. The plant is not being watered enough. b. The plant is being watered too much. c. The plant is receiving too much sunlight d. all of the above 7. In science, a hypothesis is useful only if a. it is proven correct. b. it can be proven incorrect. c. it can be tested d. the explanation is already known 8. Which of the following is NOT a part of how scientists work? a. experimenting C guessing b. observing d hypothesizing 9. Which of the following variables present in Redi's experiment on spontaneous generation is NOT a controlled variable? a gauze covering that keeps flies away from meat b. types of jars used c. types of meat used d. temperature at which the jars were stored

Answer 1

Correct answer with explanation is given below :-

1. Ans) b. Careful observations. explanation Scientists start with general observations and then make a hypothesis. The work begins with Observations, .. 2. Ans} bi Testing explanations. explanation science relies on testing ideas by figuring at What expectations are created. y pomaro. 3. Ansi bi Hypothesis ; explanation ..., : higpothesis mean a supposed or proposed explanation made on the basis of limited proof. : Presente of water could accelerate the growth of bread mold is a hypothesis. 4. Ansy b. may be disproved by a single experimenti explomation .. One of the possible outcomes of the experi- ment must be an answer and would disprove the hypothesis,

. 5. Ans> .do . All of the above. explanation Hypothesis may arise from Poriss knowledge. Hypothesis may also arise from Logical inferences and imaginative guesses. d is the correct answer . . . . . 6. Ansy d... All of the above. . explanation If the plant not get enough. waiter on . get too much water on receaning too much . Sunlight then the plant appears to be dying all of the above hypothesis are correct : 7. Ansy. C. It can be testedi explanation. hypothesis is useful only if it can be - tested. The result of testing may support the hypothesis, suggest that it is only :: Partly true or prove the hypothesis is right on horny worongo ... 8. Ans> c. guessing explanation A scientists work by obserning, gine hypothesis and comes the experimenting the test, so guessing is the correct answers

g. Ansy@ganize covering that keeps flies away from the meat explanation In Redis experiment controlled variables are the condition. The sars, type of meat the location, the temperature and the time . So, a is the correct answer.