what is the primary function of the cardiovascular system
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ATI TEAS 7

Practice TEAS Science Test

1. What is the primary function of the cardiovascular system?

Correct answer: A

Rationale: The primary function of the cardiovascular system is indeed to transport oxygen and nutrients to various tissues in the body. Choice B, 'To regulate blood pressure,' is incorrect as blood pressure regulation is one of the functions of the cardiovascular system but not its primary function. Choice C, 'To digest food,' is incorrect as digestion is primarily a function of the digestive system, not the cardiovascular system. Choice D, 'To filter waste products,' is incorrect as waste product filtration is primarily carried out by the kidneys and liver, not the cardiovascular system.

2. Which of the following movie titles contains a pronoun?

Correct answer: D

Rationale: The title "The Man Who Knew Too Much" contains the pronoun "who."

3. Long bones are one of the five major types of bones in the human body. All of the following bones are long bones, EXCEPT

Correct answer: D

Rationale: Long bones are one of the five major types of bones in the human body, characterized by their elongated shape. Thighs, forearms, and ankles are examples of long bones as they are longer than they are wide and have a tubular structure, aiding in support and movement. Fingers, however, are categorized as short bones due to their small size and shape. Short bones like fingers are essential for providing dexterity and precise movements rather than supporting weight or acting as levers for movement. Therefore, the correct answer is D, Fingers, as they are not classified as long bones.

4. What is the difference between polygenic inheritance and pleiotropy?

Correct answer: A

Rationale: - Polygenic inheritance refers to the situation where a trait is influenced by multiple genes, each contributing a small effect to the phenotype. These traits often show continuous variation and are not easily categorized into discrete categories. - Pleiotropy, on the other hand, occurs when a single gene influences multiple, seemingly unrelated traits. This means that a mutation in one gene can lead to multiple phenotypic effects across different traits or characteristics. - Therefore, the key difference between polygenic inheritance and pleiotropy lies in the number of genes involved in influencing a trait (multiple genes in polygenic inheritance vs. one gene in pleiotropy) and the direction of influence (one trait affected by multiple genes in polygenic inheritance vs. multiple traits affected by one gene in pleiotropy).

5. Identify the noun in the following sentence: The aroma of freshly baked bread filled the kitchen.

Correct answer: C

Rationale: A noun is a word that names a person, place, thing, or idea. In the given sentence, 'aroma' is the noun as it names a specific thing, in this case, a smell. 'Filled' is a verb showing an action, 'kitchen' is a place, and 'freshly' is an adverb modifying the adjective 'baked.' Therefore, 'aroma' is the correct choice as the noun in this sentence.

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