Which of following characteristic features always holds true for corresponding group of animals

Which of the following characterstics features always holds true for corresponding group of animals?

Which of the following characteristic features always holds true for the corresponding group of animals {:("(a)","Cartilaginous endoskeleton",,"Chondrichthyes"),("(b)","Viviparous",,"Mammalia"),("(c)","Possess a mouth with an upper and a lower jaw",,"Chordata"),("(d)","3- chambered heart with one incompletely divided ventricle",,"Reptilia"):}

Which of the following characteristic features always holds true for the corresponding group of animals {:("(a)","Cartilagious endoskeleton",,"Chondrichthyes"),("(b)","Vivparous",,"Mammalia"),("(c)","Possess a mouth with an upper and a lower jaw",,"Chordata"),("(d)","3- chambered heart with one incompletely divided ventricle",,"Reptilia"):}

Which of the following characteristic features always holds true for the corresponding group of animals {:("(a)","Cartilagiousendoskeleton",,"Chondrichthyes"),("(b)","Vivparous",,"Mammalia"),("(c)","Possess a mouth with an upper and a lower jaw",,"Chordata"),("(d)","3- chambered heart with one incompletely divided ventricle",,"Reptilia"):}

Which of the following characteristic features always holds true for the corresponding group of animals?

Which of the following characteristic features always holds true for the corresponding group of animals

Which of the following characteristic features always holds true for the corresponding group of animals