Question

two characteristics of dog squirrel a human being and elephant also name the classes they belong

Answer 1

Dog- class- mammal

*ventral 4 chambered heart
*a tail is present
*good olfactory receptors
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squirrel-class-mammalia

*the hind limbs are longer than the fore limbs
*As their large eyes indicate, in general squirrels have an excellent sense of vision which is especially important for tree-dwelling species. 
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elephant -class- Mammalia

*Elephants are herbivorous and can be found in different habitats including , forests, deserts
*Elephants can live up to 70 years in the wild
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