justify the statement " Mammals are most successful and dominant animals today "
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yes mammals are the most dominant animals today
=> mammals are air breathing homeothermic
=> trunk is internally divided into thorax and abdomen by the muscular diaphragm
=> body is externally covered by the hairs or fur
=> skin has the sweat glands
=> presence of mammary glands
=>skull is bicondylar
=> single bone called dentary forms lower jaws
=> neck has only seven cervical vertebrae
=> dentition: thecodont ,heterodont ,diphydont
=> having external pinna
=> heart is four chambered
=> renal portal system is absent
=> they can maintain the body temperature according to the environment
=> kidney are metanephric
=>12 pairs of cranial nerves are present
=> mammals are air breathing homeothermic
=> trunk is internally divided into thorax and abdomen by the muscular diaphragm
=> body is externally covered by the hairs or fur
=> skin has the sweat glands
=> presence of mammary glands
=>skull is bicondylar
=> single bone called dentary forms lower jaws
=> neck has only seven cervical vertebrae
=> dentition: thecodont ,heterodont ,diphydont
=> having external pinna
=> heart is four chambered
=> renal portal system is absent
=> they can maintain the body temperature according to the environment
=> kidney are metanephric
=>12 pairs of cranial nerves are present
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