Practice Science TEAS Test

Correct Answer: B

Rationale: The correct answer is B: Sudoriferous gland. Sudoriferous glands, also known as sweat glands, are responsible for producing sweat to regulate body temperature. They are distributed throughout the skin and play a vital role in maintaining homeostasis. Sebaceous glands (A) produce sebum, hair follicles (C) are responsible for hair growth, and melanocytes (D) produce melanin for skin pigmentation. Therefore, B is the correct choice as it directly relates to sweat production in the skin.

Correct Answer: B

Rationale: The correct answer is B: To filter blood and produce urine. The kidneys play a crucial role in filtering waste products and excess substances from the blood to form urine, which helps maintain the body's balance of fluids and electrolytes. This process is essential for regulating blood pressure, producing hormones, and maintaining overall bodily function. Choices A, C, and D are incorrect because the kidneys are not involved in digesting food, absorbing nutrients, or transporting oxygen.

Correct Answer: C

Rationale: The correct answer is C: Small intestine. The small intestine is responsible for absorbing nutrients due to its large surface area lined with villi and microvilli, which increase absorption capacity. It also contains enzymes and bile to further break down and facilitate nutrient absorption. The other choices are incorrect because the esophagus is a tube that transports food to the stomach, the stomach mainly digests food using acid and enzymes, and the large intestine absorbs water and electrolytes, not nutrients.

Correct Answer: A

Rationale: The correct answer is A. Macrophages are not found abundantly in the blood as they primarily reside in tissues. Neutrophils are the most abundant white blood cells in the blood. Choice B is correct as macrophages are indeed larger than neutrophils. Choice C is correct as macrophages are long-lived cells. Choice D is correct as monocytes are produced in the bone marrow and differentiate into macrophages once they migrate to tissues.

Correct Answer: B

Rationale: The correct answer is B: Serotonin. Serotonin is associated with feelings of happiness and well-being because it helps regulate mood, emotions, and sleep. Low levels of serotonin have been linked to depression and anxiety. Dopamine (A) is associated with pleasure and reward, GABA (C) is an inhibitory neurotransmitter that helps reduce anxiety, and Acetylcholine (D) is involved in muscle movement and memory. Serotonin is the most relevant neurotransmitter for happiness and well-being due to its specific role in regulating mood and emotions.