Nursing Elites

1. Which type of cell division is responsible for sexual reproduction?

• A. Mitosis
• B. Meiosis
• C. Amitosis
• D. Cytokinesis

Correct answer: B

Rationale: Meiosis is the type of cell division responsible for sexual reproduction. During meiosis, a single cell undergoes two rounds of division to produce four daughter cells, each with half the number of chromosomes as the parent cell. This reduction in chromosome number is essential for sexual reproduction as it ensures that when two gametes (sperm and egg) combine during fertilization, the resulting zygote will have the correct number of chromosomes. Mitosis, on the other hand, is a type of cell division that produces two daughter cells with the same number of chromosomes as the parent cell and is involved in growth, repair, and asexual reproduction. Amitosis is a rare form of cell division that does not involve the typical processes of mitosis or meiosis. Cytokinesis is the process of dividing the cytoplasm of a cell after mitosis or meiosis.

2. Which of the following examples would be a good transition sentence?

• A. You will have an instructor and a syllabus with a list of the books you will need to read.
• B. Taking a course online is in many ways similar to taking a course in a traditional classroom setting.
• C. You will even have class discussions and one-on-one meetings with your professor.
• D. However, online students often work entirely from home, which is just one part of what makes online learning different.

Correct answer: D

Rationale: The sentence 'However, online students often work entirely from home, which is just one part of what makes online learning different.' provides a contrast and smoothly transitions to a discussion of what makes online learning distinct from traditional classroom settings. Choice A talks about the components of a course but does not transition to a new point. Choice B discusses similarities between online and traditional courses, which does not transition to a new topic. Choice C focuses on interactions with professors but does not transition to a new idea.

3. Which statement best details the central idea in this passage?

• A. It discusses insects that transition from water to air during their life cycle.
• B. It explores the field of entomology, particularly focusing on gills.
• C. It explains the mechanism of insects' respiration.
• D. It encourages readers to contribute to insect conservation efforts.

Correct answer: A

Rationale: The correct answer is A because the passage primarily discusses certain insects that spend time in water during their early stages and then transition to an aerial life when they reach adulthood. It highlights how these insects, such as Stoneflies, May-flies, and Dragon-flies, live in water initially and then in the air during their adult stage. This central idea is best captured by choice A. <br> Choice B is incorrect because while the passage mentions gills as a part of the respiratory system of aquatic insects, it does not delve into entomology as a field. Choice C is incorrect as it does not solely focus on defining insect respiration but rather on the transition of certain insects between aquatic and aerial environments. Choice D is incorrect as the passage does not explicitly invite readers to participate in insect preservation efforts; it mainly focuses on describing the life cycle of specific insects.

4. Which of the following punctuation marks correctly completes the sentence below? "She bought several items for the trip____ a tent, a sleeping bag, and a flashlight."

• A. ;
• B. :
• C. ,
• D. .

Correct answer: B

Rationale: The correct punctuation mark to use in this sentence is the colon (:) because it is used to introduce a list. In this case, the list of items she bought for the trip includes a tent, a sleeping bag, and a flashlight. A semicolon (;) is not appropriate here because it is typically used to connect independent clauses. A comma (,) is not suitable as it would create a comma splice error. A period (.) is incorrect as it signifies the end of a sentence, which is not the intended purpose in this context.

5. The hypothalamus, a part of the brain, plays a crucial role in endocrine regulation. It secretes GnRH (Gonadotropin-releasing hormone) which stimulates the pituitary gland to produce FSH and LH. What is the MAIN function of FSH and LH?

• A. Regulate blood sugar levels
• B. Control growth and development
• C. Stimulate the fight-or-flight response
• D. Maintain calcium homeostasis

Correct answer: B

Rationale: FSH (Follicle-stimulating hormone) and LH (Luteinizing hormone) are hormones produced by the pituitary gland in response to GnRH from the hypothalamus. FSH plays a key role in the growth and development of ovarian follicles in females and sperm production in males. LH is essential for the maturation of the ovarian follicle, ovulation, and the formation of the corpus luteum in females, as well as the production of testosterone in males. Therefore, the main function of FSH and LH is to control growth and development in the reproductive system. Choices A, C, and D are incorrect as they do not align with the roles of FSH and LH in reproductive physiology. Regulating blood sugar levels is primarily the function of insulin and glucagon, controlling the fight-or-flight response involves hormones like adrenaline and noradrenaline, and maintaining calcium homeostasis is mainly regulated by parathyroid hormone and calcitonin.

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