Biology: Science for Life with Physiology 5th Edition by Colleen Belk Test bank
D) If construction vehicles enter a wetland, then new predators will arrive and reduce the bird populations.
Answer: A
Section: 1.1
Skill: Application/Analysis (Apply/Analyze)
Learning Outcome: 1.3
16) Certain researchers have published peer-reviewed reports that the use of zinc lozenges reduces the length and severity of cold symptoms. Why are some scientists still skeptical about the merits of using zinc lozenges during a cold?
A) Most people get zinc in their diet so extra zinc lozenges may not affect a cold.
B) Ideas about vitamin C have been discredited, so zinc will also be ineffective.
C) There is no way of knowing if the original work was properly controlled.
D) There may be other reasons why the people taking zinc lozenges recovered faster.
Answer: D
Section: 1.1
Skill: Application (Apply)
Learning Outcome: 1.4
17) What type of reasoning takes the form of "if/then" statements?
Answer: Deductive
Section: 1.1
Skill: Knowledge/Comprehension (Remember/Understand)
Learning Outcome: 1.3
18) What type of reasoning is used to make a hypothesis based on previously established observations?
Answer: Inductive
Section: 1.1
Skill: Knowledge/Comprehension (Remember/Understand)
Learning Outcome: 1.3
19) What two-word phrase is an explanation of a set of related observations based on well-supported hypotheses from a number of different, independent lines of research?
Answer: scientific theory
Section: 1.1
Skill: Knowledge/Comprehension (Remember/Understand)
Learning Outcome: 1.2
20) What type of reasoning is used to make predictions based on a hypothesis?
Answer: Deductive
Section: 1.1
Skill: Knowledge/Comprehension (Remember/Understand)
Learning Outcome: 1.3
21) A researcher has hypothesized that the chemical tributyltin (an additive in boat paint) seeps into the water causing reproductive defects in developing marine snails. In an experiment testing the effects of tributyltin on developing snails, which condition should be used as a control?
A) Developing snails are kept in a tank of water and exposed to below-expected levels of tributyltin.
B) Developing snails are kept in a tank of water and exposed to boat paint without tributyltin.
C) Developing snails are kept in a dry tank to avoid exposure to contaminated water.
D) Developing snails are kept in a tank of water that has been cleaned with chlorine bleach.
Answer: B
Section: 1.2
Skill: Comprehension/Application (Understand/Apply)
Learning Outcome: 1.5
22) Mehran heard that drinking a high protein supplement after football training would improve his muscle mass. To test his hypothesis, the experimental group would receive a high protein drink and the control group would drink only water. Who should be selected for the control group in this experiment?
A) randomly selected teammates who are given only small amounts of a protein drink
B) randomly selected teammates in training who are given a placebo instead of a protein drink
C) volunteers from the general campus population who are not given any protein drink
D) volunteers from the football team who agree to take a placebo instead of a protein drink
Answer: B
Section: 1.2
Skill: Comprehension/Application (Understand/Apply)
Learning Outcome: 1.5
23) Which situation describes potential observer bias in an experimental process?
A) Dr. Jones is evaluating cancer patients for their responses to a new therapeutic drug. She knows which patients are receiving the placebo and which are receiving the drug.