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Reading Comprehension: Main Idea Questions

The primary purpose of the passage is to

Great job!

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The first paragraph describes the hormone oxytocin, the second describes one of its functions and the third describes its evolutionary history.

Incorrect.

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Neuroendocrine cells are only discussed in the first paragraph and even there the function of neuroendocrine cells in the body is not explained (only that they create oxytocin).

Incorrect.

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This answer choice is too broad. The passage investigates only one hormone produced in the hypothalamus: oxytocin.

Incorrect.

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This answer choice is too narrow. Vassopressin's similarity to oxytocin is the topic of the third paragraph only.

Incorrect.

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This answer choice is too narrow. One function of oxytocin in mammalian females is the topic of the second paragraph.

describe the hormone oxytocin, its evolutionary history and one of its important functions
discuss neuroendocrine cells and their function in the body
investigate the hormones produced in the hypothalamus, their function and their evolutionary history
explain how vasopressin is similar to oxytocin
reveal the function of oxytocin in mammalian females