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Nursing Elites

ATI TEAS 7

Biology

1. Which of the following is the basic unit of the nervous system?

Correct answer: A

Rationale: Rationale: Neurons are the basic structural and functional units of the nervous system. They are specialized cells that transmit information through electrical and chemical signals. Nerves are bundles of neurons, ganglia are clusters of nerve cell bodies outside the central nervous system, and neuroglia are support cells for neurons. However, neurons are specifically responsible for transmitting and processing information in the nervous system, making them the basic unit of this system.

2. The final sentence suggests that the debate surrounding UBI necessitates

Correct answer: C

Rationale: The emphasis on "complex interplay" and "careful consideration" suggests a call for nuanced and multifaceted discussions, aligning with C.

3. The structure surrounding and protecting the testes, maintaining optimal temperature for sperm production, is called the:

Correct answer: C

Rationale: The correct answer is C: Scrotum. The scrotum is the structure surrounding and protecting the testes. Its main function is to maintain the optimal temperature for sperm production by regulating the distance of the testes from the body to adjust to temperature changes. The epididymis (A) is a coiled tube where sperm mature, the vas deferens (B) is a duct that carries sperm from the testes to the urethra, and the prostate gland (D) is responsible for producing prostatic fluid that is a component of semen. Therefore, the scrotum plays a crucial role in protecting and regulating the temperature of the testes for proper sperm production.

4. What is the correct way to write "25th anniversary" as a word?

Correct answer: D

Rationale: Ordinals (numbers with "th", "st", "nd", etc.) are generally written as words when used before nouns. Option (d) is correct.

5. How does the stability of an atom's nucleus influence its radioactive decay?

Correct answer: B

Rationale: Unstable nuclei are more likely to decay through various processes. The stability of an atom's nucleus is a key factor in determining whether it will undergo radioactive decay. Unstable nuclei have an excess of either protons or neutrons, leading to an imbalance in the nucleus. To achieve a more stable configuration, these nuclei will undergo radioactive decay by emitting particles or energy. Stable nuclei, on the other hand, are less likely to undergo radioactive decay as they have a balanced number of protons and neutrons.

6. Which of the following is the positively charged subatomic particle found in the nucleus of an atom?

Correct answer: B

Rationale: Protons are positively charged subatomic particles found in the nucleus of an atom. They have a mass of approximately 1 atomic mass unit (amu) and a charge of +1. The number of protons in an atom's nucleus determines the atomic number of the element, which is a unique identifier for each element.

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