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Riyanka · Accepted Answer

1.   As  per  other  mammal  pig  is  a  mammal  because  they  have  the  Mammary  gland   to  nurse  their  babies.
 Pig  give  live  birth  instead  of  laying  eggs,  they  have   a  heart  with  4  chambers.
  In  to  the  placental  mammal’s  uterus  wall  the  placenta  embedded  which  after  by  time  grow  as  a  baby  so   mother   nurture  the  live  young  within  the  uterus.  Pig  also  a  placental  mammal.
2. The  sequence  of  the  following  organs  to  trace  the  path  of  air:  First  enter  into   the  Nasal  passage  then    Nasopharynx   to   Glottis  after  that    Trachea   through   Bronchi  and  at  last  into  the   Lungs.
3.

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