SCIENCE 2023 Exam-3

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Q1: Hikers who found a human body at high altitude in the Italian Alps thought the man had died recently, but tests indicated he was shot with an arrow more than 5,300 years ago. Which of the following would be the best reason for prolonged preservation of the body?

A. The ultraviolet rays at such a high altitude caused all his molecules to be preserved.

B. The food that the person ate contained toxins that killed the bacteria that would have otherwise destroyed the body.

C. The body was frozen in the cold temperature of the Alps shortly after he died and remained frozen until it was found.

D. The arrow wound caused blood to ﬂow out of the body which led the enzymes that would break down tissue to be cleared from the body.

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Q2: Experiments cannot validate hypotheses, only falsify them. The statement above can be restated in which of the following ways?

A. Until disproved, an explanation for an observation is valid.

B. Certain concepts cannot be subjected to direct experimentation.

C. A hypothesis that has not been falsified remains provisional.

D. Proving a hypothesis exempts it from further testing

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Q3: In which of the following regions of the body are the tibia and fibula?

A. Coxal

B. Antecubital

C. Tarsal

D. Crural

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Q4: Which of the following functions does the myelin sheath perform for a nerve cell?

A. Insulation

B. Sensory perception

C. Regeneration

D. Nutrition

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Q5: Which of the following occurs in an oxidation reaction?

A. Removal of oxygen

B. Addition of carbon

C. Addition of neutrons

D. Removal of electrons

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Exam Details

Total Questions: 49 practice questions

Category: ATI TEAS

Subcategory: SCIENCE

Domain: SCIENCE 2023

Last Updated: Nov 29, 2025

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