Concise is best defined as being ___________.

Correct Answer: B

Rationale: Concise is best defined as being brief or to the point, expressing much in few words. While accuracy and exactness are important qualities, concise specifically refers to being brief or succinct in communication. Choice A ('exact') is not the best definition, as being precise in language does not necessarily mean being concise. Choice C ('accurate') is also not the best definition, as accuracy relates more to correctness than brevity. Choice D ('assembled') is unrelated to the definition of concise.

Correct Answer: B

Rationale: A blood vessel that is distended is swollen. Distention refers to the state of being stretched beyond normal limits, which can cause the blood vessel to expand and swell. The term 'distended' is often used to describe blood vessels that are enlarged or swollen due to various reasons such as increased blood pressure or blockages. Choice A, 'overturned,' does not relate to the enlargement or swelling of a blood vessel. Choice C, 'twisted,' describes a different condition where the blood vessel is coiled or rotated, not necessarily enlarged. Choice D, 'overlong,' does not accurately describe the state of a distended blood vessel; instead, it implies excessive length rather than enlargement.

Correct Answer: C

Rationale: The correct word that can be used to describe something that is thick and sticky, like viscosity, is 'gelatinous.' Gelatinous refers to a substance that has a jelly-like consistency, which aligns with the characteristics of something viscous. Options A, B, and D do not accurately capture the concept of being thick and sticky. 'Fluid' implies a substance that flows easily, 'molten' refers to something melted by heat, and 'malleable' describes the ability to be shaped without breaking.

Correct Answer: C

Rationale: An overt symptom is a symptom that is easily noticeable or observable. It is not hidden or controlled, but rather overt and easily seen or identified by others. Therefore, the correct answer is C, 'obvious.' 'Dangerous' (choice A) does not describe the visibility of a symptom but rather its potential harm. 'Hidden' (choice B) is the opposite of overt, meaning not easily visible. 'Controlled' (choice D) does not relate to the visibility of a symptom but rather implies regulation or management.'

Correct Answer: D

Rationale: The correct answer is D, Poison. A toxin is a harmful substance that can cause illness or death, and poison is a synonym commonly used to refer to such substances. Choices A, B, and C are incorrect because impurity refers to something being dirty or unclean, an element is a pure substance that cannot be broken down further, and a remedy is a solution or treatment for a problem, not a harmful substance like a toxin.