Nursing Elites

1. What type of clause is "as the sun dipped below the horizon" in the sentence "We sat on the beach, as the sun dipped below the horizon"?

• A. Independent clause
• B. Subordinate clause
• C. Appositive clause
• D. Noun clause

Correct answer: B

Rationale: The clause "as the sun dipped below the horizon" provides additional information about the main clause "We sat on the beach," making it a subordinate clause.

2. The phrase "disruptions to ecosystems" refers to

• A. Minor inconveniences experienced by plant and animal species due to changing weather patterns.
• B. Significant changes in ecological relationships and imbalances in populations and food webs.
• C. The aesthetic alteration of landscapes due to melting glaciers and deforestation.
• D. The economic losses suffered by industries relying on natural resources affected by climate change.

Correct answer: B

Rationale: The phrase suggests profound impacts on ecological balance and species interactions, aligning with B.

3. What is the building block of RNA?

• A. Amino acid
• B. Nucleotide
• C. Protein
• D. Fatty acid

Correct answer: B

Rationale: Rationale: A) Amino acid: Amino acids are the building blocks of proteins, not RNA. B) Nucleotide: Nucleotides are the building blocks of RNA. A nucleotide consists of a nitrogenous base (adenine, guanine, cytosine, or uracil in RNA), a sugar (ribose in RNA), and a phosphate group. C) Protein: Proteins are made up of amino acids, not nucleotides. D) Fatty acid: Fatty acids are components of lipids, not RNA.

4. You need to fill a rectangular swimming pool with dimensions 10 meters by 5 meters and a depth of 2 meters. How many cubic meters of water does it take to fill the pool?

• A. 50 cu m
• B. 100 cu m
• C. 150 cu m
• D. 200 cu m

Correct answer: C

Rationale: Simply multiply the pool's dimensions to find its volume.

5. Memory B cells and memory T cells are crucial for immunological memory. How does immunological memory enhance the immune response upon re-exposure to a pathogen?

• A. It increases the production of the same ineffective antibodies.
• B. It allows for a quicker and more robust immune response.
• C. It suppresses the immune system to prevent overreaction.
• D. It triggers a completely different immune response.

Correct answer: B

Rationale: Option B is correct because memory B cells and memory T cells retain information about a specific pathogen encountered before. Upon re-exposure to the same pathogen, these memory cells facilitate a faster and stronger immune response. Memory B cells quickly differentiate into plasma cells that produce antibodies more rapidly and in larger quantities than during the initial infection. Memory T cells can recognize the pathogen quickly and activate other immune cells to eliminate the threat efficiently. This allows the immune system to mount a quicker and more effective defense, potentially preventing the spread of the pathogen and reducing the severity of the infection.

6. Look at the following electron configuration: 1s2 2s2 2p6 3s2 3p6. To which group and period does this element belong?

• A. Group 16, Period 3
• B. Group 14, Period 3
• C. Group 18, Period 3
• D. Group 17, Period 2

Correct answer: C

Rationale: ) Group 18, Period 3. Count the total electrons (2 + 2 + 6 + 2 + 6 = 18) and observe the completely filled energy levels. This points to a noble gas in Group 18 (Neon) during Period 3.

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