Nursing Elites

1. How does an increase in surface area affect the force of friction between two surfaces?

• A. Increases friction
• B. Decreases friction
• C. Has no effect on friction
• D. Causes unpredictable changes in friction

Correct answer: b

Rationale: Increasing surface area reduces the force per unit area, decreasing friction.

2. The term "symbiotic relationship" describes an interaction between two organisms where:

• A. One organism benefits and the other is unaffected
• B. Both organisms are harmed by the interaction
• C. One organism benefits and the other is negatively impacted
• D. Both organisms benefit from the interaction

Correct answer: D

Rationale: Rationale: In a symbiotic relationship, both organisms involved benefit from the interaction. This mutually beneficial relationship can take different forms, such as mutualism where both organisms benefit, commensalism where one organism benefits and the other is unaffected, or parasitism where one organism benefits at the expense of the other. In this case, the term "symbiotic relationship" specifically refers to a scenario where both organisms derive some form of benefit from their interaction.

3. What is the relationship between genetic drift and the founder effect?

• A. Founder effect is a cause of genetic drift within a small population
• B. Genetic drift is a cause of the founder effect in new populations
• C. They are the same phenomenon with different names
• D. They are unrelated concepts.

Correct answer: A

Rationale: Rationale: - The founder effect is a specific type of genetic drift that occurs when a small group of individuals establishes a new population, leading to a loss of genetic variation. - Genetic drift, on the other hand, is a broader concept that refers to random changes in allele frequencies in a population over time due to chance events. - Therefore, the founder effect is a specific scenario within the broader concept of genetic drift, where the establishment of a new population by a small number of individuals leads to genetic changes in the population.

4. The process of mixing two or more substances to form a heterogeneous mixture is called:

• A. Dissolving
• B. Diluting
• C. Mixing
• D. Reacting

Correct answer: C

Rationale: Mixing results in a heterogeneous mixture where the components are physically distinguishable, unlike solutions where everything dissolves uniformly

5. What property of a substance remains constant regardless of changes in its location in the universe?

• A. Mass
• B. Weight
• C. Density
• D. Volume

Correct answer: a

Rationale: Mass is an intrinsic property of matter and remains constant regardless of its location.

6. Acids are generally characterized by a sour taste and the ability to:

• A. Turn litmus paper blue
• B. Conduct electricity in solution
• C. Neutralize bases
• D. React explosively with metals

Correct answer: B

Rationale: Acids release hydrogen ions (H+) in solution, allowing electrical conductivity

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