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Nursing Elites

ATI TEAS 7

Anatomy

1. The network of vessels and ducts responsible for draining excess fluid and waste products from tissues is the:

Correct answer: C

Rationale: The correct answer is C: Lymphatic system. The lymphatic system is a network of vessels and ducts that play a crucial role in maintaining fluid balance in the body by draining excess fluid and waste products from tissues. Unlike the circulatory system (A), which primarily transports blood, the lymphatic system is specifically designed for this drainage function. The digestive system (B) is responsible for breaking down food and absorbing nutrients, while the respiratory system (D) is involved in the exchange of gases. Therefore, the lymphatic system is the correct answer for this question as it is uniquely tasked with managing tissue fluid balance and waste removal.

2. What property of a substance refers to its ability to undergo a chemical change and form new substances with different properties?

Correct answer: c

Rationale: Reactivity refers to a substance's ability to undergo a chemical change or reaction, forming new substances with different properties.

3. What is the main factor limiting population growth in K-strategists?

Correct answer: B

Rationale: Rationale: K-strategists are species that have a low reproductive rate and invest more resources in raising fewer offspring. These species typically inhabit stable environments where resources are limited. The main factor limiting population growth in K-strategists is the availability of resources such as food, shelter, and space. When resources are scarce, K-strategists may struggle to find enough resources to support their population size, leading to decreased reproductive success and population growth. Predation (option A), competition (option C), and disease (option D) can also impact population growth, but the primary limiting factor for K-strategists is the availability of resources.

4. Which of the following factors can contribute to erectile dysfunction in males?

Correct answer: D

Rationale: The correct answer is D, 'All of the above.' Erectile dysfunction in males can be caused by various factors including diabetes, cardiovascular disease, and neurological disorders. Diabetes can lead to nerve damage and reduced blood flow, impacting erectile function. Cardiovascular disease can restrict blood flow to the penis, affecting erections. Neurological disorders can disrupt the signals between the brain and the reproductive system, interfering with the ability to achieve or maintain an erection. Therefore, all of these factors can contribute to erectile dysfunction in males.

5. A concave mirror can be used to:

Correct answer: A

Rationale: A concave mirror can be used to focus light to a single point because of its reflective surface that curves inward. When light rays parallel to the mirror's principal axis strike the mirror, they converge at a focal point, creating a real image. This property makes concave mirrors useful in applications like reflecting telescopes and headlights, where focusing light to a point is necessary for proper functioning. Virtual images are also created by concave mirrors, but the primary function is to focus light rather than create virtual images. Magnification of objects and scattering of light are not inherent properties of concave mirrors.

6. Nuclear fission is a process characterized by:

Correct answer: A

Rationale: Nuclear fission is a process characterized by a heavy nucleus capturing a neutron and splitting into smaller nuclei, releasing a significant amount of energy in the form of heat and radiation. This differs from nuclear fusion, which involves the merging of two lighter nuclei to form a heavier element. The emission of an alpha particle by a lighter element is a form of radioactive decay, not fission. Absorption of an electron by the nucleus with the release of a gamma ray is not representative of fission reactions. Therefore, option A correctly describes the process of nuclear fission.

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