In 1 Corinthians 15:36-49 Paul gives a description of resurrection bodies using an illustration from nature. When a seed is planted in the ground it dies; decomposing, it ceases to exist in its seed form, but life comes from that seed (John 12:24). Just as God gives a new body to that plant that rises from the dead seed, so He can give a resurrection body to a person who dies.
As there are vastly different bodies and forms in God’s created universe which are suited for all kinds of existence, so God can design a perfect body for resurrection life.
Commentary from The MacArthur Bible Commentary, by John MacArthur, 2005.