Nursing Elites

1. What does the following sentence most nearly mean? 'The preparatory instars of such insects are aquatic; the adult instar is aerial.'

• A. The volume of water is necessary for preparing the insect for transition rather than the volume of the air.
• B. The insect's body is shaped like a star in both water and air.
• C. The stage of preparation between molting occurs in water, while the final stage happens in the air.
• D. These insects first breathe in water through gills and then continue to use the same organs to breathe in the air.

Correct answer: C

Rationale: The sentence indicates that the insects undergo different stages of development, with the preparatory instars being aquatic and the adult instar being aerial. This highlights the adaptability of these insects to different environments. Choice A is incorrect as it focuses on the volume of water and air rather than the stages of development in different environments. Choice B is unrelated to the content of the sentence and does not capture the meaning accurately. Choice D is incorrect as it specifically mentions breathing through gills, which is not explicitly stated in the sentence. Therefore, choice C is the best interpretation of the sentence.

2. Which verb tense best fits the blank: 'By next month, she _____ the project for a year.'

• A. will have been working on
• B. will work on
• C. has been working on
• D. had worked on

Correct answer: A

Rationale: The correct answer is 'A: will have been working on.' In this sentence, the future perfect continuous tense is needed to convey that the action of working on the project will continue up to a specific future point (next month). Choices B, C, and D are incorrect. Choice B ('will work on') indicates a future action without emphasizing the duration of the action. Choice C ('has been working on') is in the present perfect continuous tense, which does not convey the future duration of the action. Choice D ('had worked on') is in the past perfect tense, which is not suitable for indicating an action continuing up to a future point.

3. The words 'aerobics' and 'aeronautics' both have the prefix 'aero' in common. What does 'aero' mean?

• A. Light
• B. Speed
• C. Distance
• D. Air

Correct answer: D

Rationale: The prefix 'aero' is derived from the Greek word 'aēr,' which means air. In words like 'aerobics' and 'aeronautics,' the prefix 'aero' refers to air-related activities or concepts. Therefore, 'air' is the correct meaning of the prefix 'aero.' Choices A, B, and C are incorrect. 'Light' does not relate to the prefix 'aero,' 'speed' and 'distance' are not associated with the concept of air as in 'aero,' making them incorrect answers.

4. After the Industrial Revolution, the population of peppered moths in England shifted towards more dark moths. This is an example of:

• A. Artificial selection (selective breeding by humans for desired traits)
• B. Natural selection acting on pre-existing variation
• C. Punctuated equilibrium (rapid bursts of evolution)
• D. Lamarckism (inheritance of acquired characteristics)

Correct answer: B

Rationale: The shift in the peppered moth population towards more dark moths in England after the Industrial Revolution exemplifies natural selection acting on pre-existing variation. Initially, light-colored moths were well-camouflaged against lichen-covered tree trunks, but with industrial pollution darkening the tree trunks, dark-colored moths gained a survival advantage. This change reflects how the environment favored dark moths over light ones, illustrating natural selection. The process illustrates how organisms with traits advantageous in a changing environment are more likely to survive and reproduce, leading to the prevalence of those traits in the population over time. The choices of artificial selection (A), punctuated equilibrium (C), and Lamarckism (D) are not applicable in this scenario. Artificial selection involves intentional breeding by humans, punctuated equilibrium refers to rapid bursts of evolution followed by periods of stability, and Lamarckism suggests the inheritance of acquired characteristics, none of which align with the observed shift in moth populations based on environmental changes.

5. What is the term for a group of organisms with the same genetic makeup?

• A. Population
• B. Clone
• C. Genotype
• D. Species

Correct answer: B

Rationale: In this context, a clone (option B) is a group of organisms that are genetically identical because they are derived from a single ancestor. A population (option A) refers to a group of individuals of the same species living in the same area. Genotype (option C) refers to the genetic makeup of an individual organism. Species (option D) refers to a group of organisms that can interbreed and produce fertile offspring. Therefore, the most appropriate choice for the question is 'Clone,' as it specifically refers to organisms with the same genetic makeup.

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