Animal Kingdom Question 3
Question: The unique mammalian characteristics are:
(1) pinna, monocondylic skull and mammary glands
(2) hairs, tympanic membrane and mammary glands
(3) hairs, pinna and mammary glands
(4) hairs, pinna and indirect development
Show Answer
Answer: (3) hairs, pinna and mammary glands
Explaination-
Features are distinguishing characteristics of mammals:
Hairs: Most mammals have hairs (fur or whiskers), which serve various functions such as insulation, camouflage, and sensory perception.
Pinna (external ears): Mammals generally have external ears, or pinnae, which help in sound localization and are often well-developed in species with acute hearing.
Mammary glands: Mammals possess mammary glands, which are responsible for producing milk to nourish their young.
