Biology: Science for Life with Physiology 5th Edition by Colleen Belk Test bank
Learning Outcome: 1.4
9) Why are hypotheses never accepted as proven by scientists?
A) A hypothesis cannot ever be true or false because it is an opinion.
B) Experimentation cannot support a hypothesis because it only tests predictions.
C) Hypotheses change every time a new experiment is conducted.
D) Alternative hypotheses might provide a better answer to the research question.
Answer: D
Section: 1.1
Skill: Analysis (Analyze)
Learning Outcome: 1.4
10) What is the result when a well-tested hypothesis is supported by many independent studies in the scientific community?
A) The hypothesis would be considered a scientific theory.
B) The hypothesis is now be referred to as a prediction.
C) Further experiments would not occur unless a sufficient alternative is proposed.
D) The hypothesis is a fact that cannot be refuted.
Answer: A
Section: 1.2
Skill: Comprehension/Application (Understand/Apply)
Learning Outcome: 1.5
11) Consider this hypothesis: "Drinking Echinacea tea reduces the duration and severity of colds." Which of the following statements is the best prediction based on this hypothesis?
A) If people with a cold drink Echinacea tea, then they will feel better sooner.
B) If people with a cold drink Echinacea tea, then a tea ingredient will destroy the cold viruses.
C) If people with a cold drink Echinacea tea, then the tea will reduce their stress.
D) If a person doesn't drink Echinacea tea, then he or she will catch a cold very easily.
Answer: A
Section: 1.1
Skill: Application/Analysis (Apply/Analyze)
Learning Outcome: 1.3
12) Which of the following is a testable hypothesis?
A) Taking zinc lozenges at the first sign of cold symptoms is wise.
B) Avoiding contact with other people reduces the chance of catching a cold.
C) Being a good driver makes you less likely to catch a cold.
D) Sleeping 8 hours a night makes you feel better when you have a cold.
Answer: B
Section: 1.1
Skill: Comprehension/Application (Understand/Apply)
Learning Outcome: 1.1
13) Which of the following hypotheses is testable using scientific methods?
A) Bees can see ultraviolet light that humans can't.
B) The dinosaur Tyrannosaurus rex was a scavenger, not a predator.
C) Peacocks like to display their large tail feathers.
D) People with type O blood are natural meat eaters.
Answer: A
Section: 1.1
Skill: Comprehension/Application (Understand/Apply)
Learning Outcome: 1.1
14) Which of the following statements is a testable scientific hypothesis?
A) Antioxidants from food are better than antioxidants from a vitamin pill.
B) Eating fish reduces the chance of having a stroke.
C) Embryonic stem cell research will allow scientists to find a cure for diabetes.
D) Smoking makes people less attractive.
Answer: B
Section: 1.1
Skill: Comprehension/Application (Understand/Apply)
Learning Outcome: 1.1
15) Which statement makes a prediction for the hypothesis "bird species have decreased in number in a particular wetland due to construction traffic"?
A) If a wetland area is disturbed by construction vehicles, then the number of bird species will decrease.
B) If construction vehicles are in a wetland, then the birds will become too frightened to reproduce.
C) If bird numbers decrease in a wetland, then construction vehicles must have polluted the environment.