Some things are so obvious they do not need to be said. The spiritual realm is not the same as the physical realm. the spiritual realm is eternal, the physical is temporary. All things of the physical world will be destroyed, brought to nothing. Spirit cannot be destroyed, it is eternal,
It is obvious that in heaven, a body will be different from on earth. But scripture is clear, This current body will be destroyed and replaced.
Heaven is an immaterial place. All beings there must be suited to live in an immaterial world.
The Scriptures say....
2Co 5:1 For we know that if our earthly house of this tabernacle were dissolved, we have a building of God, an house not made with hands, eternal in the heavens.
2Co 5:2 For in this we groan, earnestly desiring to be clothed upon with our house which is from heaven:
2Co 5:3 If so be that being clothed we shall not be found naked.