No, a human corpse is no longer a human being. Without the soul that animates it and gives it form, a body is material that will quickly decay and return to the dust of the earth. The Catechism of the Catholic Church states:
The unity of soul and body is so profound that one has to consider the soul to be the “form” of the body: i.e., it is because of its spiritual soul that the body made of matter becomes a living, human body; spirit and matter, in man, are not two natures united, but rather their union forms a single nature (CCC 365).
The Catechism also explains why the Church insists that the remains of a human being be treated with respect, even though it is no longer a person:
The bodies of the dead must be treated with respect and charity, in faith and hope of the resurrection. The burial of the dead is a corporal work of mercy; it honors the children of God, who are temples of the Holy Spirit (CCC 2300).
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