Animal Kingdom Question 3
The defining 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
(3) hairs, pinna, and mammary glands
Explanation-
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.
BETA
