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Nursing Elites

ATI TEAS 7

Chemistry

1. Which element is used in jewelry due to its malleability and resistance to tarnish?

Correct answer: C

Rationale: Gold's properties make it ideal for crafting durable and aesthetically pleasing jewelry

2. What is the main purpose of biological classification?

Correct answer: B

Rationale: Rationale: Biological classification, also known as taxonomy, is the science of categorizing and organizing living organisms based on shared characteristics. The main purpose of biological classification is not to create a rigid and unchanging system (option A) or to simplify nature into neat and tidy categories (option C). Instead, it aims to help us understand the diversity of life on Earth and how different organisms are related to each other. By classifying organisms into groups based on their evolutionary relationships, we can gain insights into the interconnectedness of life and better appreciate the complexity and beauty of the natural world. Assigning organisms to specific ecological niches (option D) is more related to ecological studies rather than biological classification.

3. Which type of cell is responsible for carrying oxygen throughout the body?

Correct answer: D

Rationale: The correct answer is D: Red blood cell. Red blood cells, also known as erythrocytes, are responsible for carrying oxygen throughout the body. They contain hemoglobin, a protein that binds to oxygen in the lungs and transports it to tissues and organs. Nerve cells (option A) transmit electrical signals, muscle cells (option B) are involved in movement, and skin cells (option C) form the outer layer of the skin and provide protection.

4. What is the absolute value of -7?

Correct answer: A

Rationale: Absolute value refers to the non-negative distance of a number from zero. Regardless of being positive or negative, 7 is its distance from zero.

5. What property of a wave is measured in Hertz (Hz)?

Correct answer: d

Rationale: Frequency, the number of oscillations per second, is measured in Hertz (Hz).

6. Which of the following epithelial tissues lines the stratified squamous epithelium of the esophagus, providing a protective barrier against abrasion from food passage?

Correct answer: B

Rationale: The correct answer is B: Stratified squamous epithelium. The esophagus is a part of the digestive system that undergoes constant abrasion from the passage of food. The presence of stratified squamous epithelium is crucial in providing protection against this abrasion. Simple squamous epithelium (option A) is a single layer of flat cells and is not suitable for this function. Simple cuboidal epithelium (option C) is found in glands and ducts, not in structures exposed to mechanical stress like the esophagus. Stratified cuboidal epithelium (option D) is rare in the body and would not be found in the esophagus. Therefore, the correct answer is B because stratified squamous epithelium is specifically adapted to provide protection against abrasion in the esophagus.

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