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Nursing Elites

ATI TEAS 7

Biology

1. What are chromosomes made of?

Correct answer: B

Rationale: Rationale: Chromosomes are structures found in the nucleus of cells that contain genetic material. They are made up of DNA (deoxyribonucleic acid), which carries the genetic information, and proteins that help in the organization and packaging of the DNA. While RNA is involved in various cellular processes, it is not a major component of chromosomes. Carbohydrates are not a significant component of chromosomes. Therefore, the most accurate answer is B) DNA and proteins.

2. What is the main idea of the following passage: "The internet has revolutionized communication, allowing people to connect instantly from anywhere in the world. Social media platforms, like Facebook and Twitter, have further amplified this connectivity, enabling individuals to share information and ideas on a global scale."

Correct answer: C

Rationale: The passage emphasizes the transformative impact of the internet and social media on communication.

3. A water wave approaches a shallow beach. What happens to its speed, wavelength, and frequency?

Correct answer: B

Rationale: As waves enter shallow water, they slow down due to increased interaction with the bottom. This causes the wavelength to decrease to maintain the constant wave energy (E = hf). Frequency remains constant as it's determined by the source, not the medium.

4. An element with atomic number 26 and mass number 56 is most likely to be:

Correct answer: A

Rationale: Iron (Fe) - Fe-56 has 26 protons and aligns with the given atomic number and mass number.

5. Which state of matter has a definite shape and volume but can flow?

Correct answer: B

Rationale: Liquids have a definite volume but can take the shape of their container, unlike solids with fixed shapes and volumes.

6. Which muscle type is characterized by a combination of voluntary and involuntary control, is striated, and is responsible for pumping blood throughout the circulatory system?

Correct answer: c

Rationale: The correct answer is C: Cardiac muscle. Cardiac muscle is characterized by a combination of voluntary and involuntary control, as the heart can beat involuntarily while also responding to signals from the autonomic nervous system. It is striated, meaning it has a striped appearance under a microscope due to the arrangement of contractile proteins. Cardiac muscle is responsible for pumping blood throughout the circulatory system, making it crucial for maintaining circulation and delivering oxygen and nutrients to tissues. Skeletal muscle (option A) is primarily under voluntary control and is responsible for movement, while smooth muscle (option B) is predominantly involuntarily controlled and found in organs like the intestines. Connective tissue (option D) provides support and structure but is not a muscle type responsible for pumping blood.

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