Glands of Zeis are associated with the eye lashes. These are modified-

Correct Answer: C

Rationale: The correct answer is C: Sebaceous glands. Glands of Zeis are modified sebaceous glands that are associated with the eyelashes. Sebaceous glands produce sebum, an oily substance that helps keep the skin and hair lubricated and waterproof. In contrast, sweat glands (choice A) produce sweat, mucous glands (choice B) secrete mucus, and sudoriferous glands (choice D) are another term for sweat glands. Therefore, choice C is correct as it accurately reflects the function of the glands of Zeis.

Correct Answer: A

Rationale: The correct answer is A because "goose-flesh" or goosebumps occur when the arrector pili muscles contract, causing hairs to stand upright. This physiological response is triggered by various factors like cold temperatures or emotions. Choice B is incorrect as it describes whiskers on a rabbit's upper lip. Choice C is incorrect as sebum is related to skin oil production, not goose-flesh. Choice D is incorrect as it refers to uncooked pork meat, which is unrelated to the physiological mechanism of goose-flesh.

Correct Answer: C

Rationale: The correct answer is C: Skin. In mammals, maximum energy is lost through the skin in the form of heat. This is due to the process of thermoregulation, where excess body heat is released through the skin to maintain a stable internal temperature. Respiration (choice A) is essential for energy production, urine (choice B) primarily eliminates waste products, and stool (choice D) is the result of undigested food. Skin, on the other hand, plays a crucial role in regulating body temperature and dissipating excess energy in the form of heat, making it the primary route for energy loss in mammals.

Correct Answer: C

Rationale: Certainly! The correct answer is C: Perspiration. Copious sweat secretion is the body's way of regulating temperature through evaporative cooling. Blubber (A) refers to a layer of fat in marine mammals. Pelage (B) refers to an animal's fur or hair. Goose flesh (D) is the raised bumps on the skin due to cold or emotional stress. Perspiration is the specific term for the secretion of sweat by sweat glands for thermoregulation, making it the correct choice in this context.

Correct Answer: A

Rationale: The correct answer is A: Panniculus carnosus. This muscle is responsible for moving and shaking the skin, particularly in animals. It is a thin layer of muscle found in the subcutaneous tissue. It contracts to create goosebumps and aid in thermoregulation. The other choices, B: Collagen fibers, C: Sphincter muscles, and D: Arrector pili, do not directly move and shake the skin. Collagen fibers provide structural support, sphincter muscles control the opening and closing of passages, and arrector pili are responsible for hair erection, not skin movement.