What is the definition of adverse?

Correct Answer: B

Rationale: The term 'adverse' is used to describe something that is unfavorable, unwanted, or potentially harmful. This makes choice B, 'Undesired, possibly harmful,' the correct definition. Choices A, C, and D are incorrect because they describe positive (desirable, beneficial) or neutral characteristics, which are the opposite of what 'adverse' means.

Correct Answer: B

Rationale: The term 'Contour' specifically refers to the shape or outline of something. In art and geography, contours are used to represent the outline or shape of an object or landform, making choice B the correct definition. Choice A, 'Flat area,' is incorrect as it does not capture the essence of contour which is about the shape or outline. Choice C, 'Volume of a structure,' is unrelated to the concept of contour. Choice D, 'Height of a structure,' is also incorrect as contour is more about the shape and not the height of an object.

Correct Answer: B

Rationale: The correct answer is B: The mechanical and chemical breakdown of food. Digestion involves breaking down food mechanically and chemically into smaller components for absorption by the body. This process occurs in the digestive system, preparing nutrients for absorption in the intestines. Choices A, C, and D are incorrect because digestion is not solely about the production of enzymes, absorption of nutrients in the blood, or movement of enzymes; it primarily involves breaking down food for nutrient absorption.

Correct Answer: B

Rationale: Gender refers to the biological and social characteristics that define male and female identities. It is not a medical condition, emotional state, or psychological term. The term 'gender' specifically relates to the sex of an individual, distinguishing between traits associated with being male or female. Therefore, the correct answer is B.

Correct Answer: B

Rationale: The term 'External' refers to something that is located outside the body. In this context, it specifically denotes a position or location that is beyond the confines of the body's boundaries. Choice A is incorrect as 'External' means outside, not inside. Choice C is incorrect as it confuses the internal exposure with external positioning. Choice D is incorrect as 'External' does not necessarily mean near the skin, but rather outside the body.