Nursing Elites

1. What should be done after the soil has been loosened with a tiller or trowel?

• A. Mix fertilizer or compost into loosened soil.
• B. Dig a 4-inch-deep trench.
• C. Cut potatoes into pieces.
• D. Mound soil around the base of the plant.

Correct answer: A

Rationale: After the soil has been loosened with a tiller or trowel, the next step should be to mix fertilizer or compost into the loosened soil. This action is crucial as it provides essential nutrients for plant growth, improves soil fertility, and promotes healthy plant development. Digging a trench, cutting potatoes, or mounding soil around the base of the plant are not tasks typically performed immediately after loosening the soil. Therefore, option A is the correct choice as it aligns with the standard practice of enhancing soil quality before planting.

2. What is the primary function of the myelin sheath that surrounds some axons in the nervous system?

• A. To initiate nerve impulses
• B. To transmit sensory information
• C. To speed up the transmission of nerve impulses
• D. To connect neurons at synapses

Correct answer: C

Rationale: The primary function of the myelin sheath is to speed up the transmission of nerve impulses. The myelin sheath acts as an insulating layer around the axon, allowing for faster conduction of electrical impulses along the nerve fiber. This insulation prevents the electrical signal from dissipating or 'leaking' out, which helps in the rapid and efficient transmission of nerve impulses along the axon. Choice A is incorrect because the myelin sheath does not initiate nerve impulses; it helps in conducting them. Choice B is incorrect as the myelin sheath's main role is not in transmitting sensory information but rather in facilitating the transmission of nerve impulses. Choice D is incorrect because the myelin sheath's function is not to connect neurons at synapses; instead, it is primarily involved in enhancing the speed of nerve impulse transmission.

3. Which property of a substance refers to its ability to be stretched into thin wires without breaking?

• A. Conductivity
• B. Viscosity
• C. Ductility
• D. Malleability

Correct answer: C

Rationale: Ductility is the property of a substance that allows it to be stretched into thin wires without breaking. This property is distinct from the other options provided. Conductivity refers to the ability to conduct electricity or heat, viscosity refers to a liquid's resistance to flow, and malleability refers to the ability of a substance to be hammered or rolled into thin sheets. Therefore, the correct answer is 'Ductility.'

4. What is the difference between a phylum and a class?

• A. Phylums are broader and more general
• B. Classes are broader and more general
• C. They are synonyms, used for the same groups
• D. Phylums are for plants, classes are for animals

Correct answer: A

Rationale: In biological classification, a phylum is a higher taxonomic rank than a class. A phylum is a broader category that encompasses multiple classes within it. It represents a group of organisms sharing a common body plan or evolutionary history. On the other hand, a class is a more specific category within a phylum that includes organisms with similar characteristics. Therefore, phyla are broader and more general compared to classes. Choice B is incorrect because classes are more specific categories within phyla. Choice C is incorrect as phyla and classes are distinct hierarchical levels in taxonomy. Choice D is incorrect because phyla and classes are not restricted to specific types of organisms; they can apply to various organisms across the biological kingdom.

5. In a volleyball game, who can score a point?

• A. the receiving team
• B. the serving team
• C. any team
• D. neither team

Correct answer: B

Rationale: According to the passage, only the serving team can score in a volleyball game. After the ball is served, the serving team earns points by winning a rally. The receiving team aims to stop the serving team and win the rally to gain the serve. Therefore, the correct answer is the serving team. Choices A, C, and D are incorrect as the receiving team does not score points, both teams do not score, and there is indeed scoring in volleyball.

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