A characteristic that best exemplifies the evolutionary advancement of mammals over other vertebrates is the
viviparous mode of reproduction
possession of paired limbs
terrestrial mode of life
possession of a heart
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The ans is A,(viviparous means-bearing their young ones that has developed in the body of the mammal not forming eggs)
All vertebrates have a heart, so that is not a characteristic that distinguishes mammals from other vertebrates. Viviparous (live) mode of reproduction is also found in some other vertebrates such as some sharks, snakes, and lizards, so it is not unique to mammals. Terrestrial mode of life is also found in many other animals, including some invertebrates. However, possession of paired limbs is a characteristic that is unique to tetrapod vertebrates, which includes mammals, birds, reptiles, and amphibians. Therefore, the possession of paired limbs is a characteristic that best exemplifies the evolutionary advancement of mammals over other vertebrates.
