1 Corinthians 15:35–58: The Resurrection Body
Paul's answer to the question about the resurrection body is a seed: what is sown is not what comes up, and God gives each body as he pleases. The passage concerns how God raises the dead, not how a body is disposed of.
Will Christians recognize loved ones in the new creation? A Biblical Guide
Paul answers a question about the resurrection body by pointing to a seed, which is continuous with the plant yet utterly changed. That grounds real hope of continuity for the grieving, while leaving recognition in God's hands rather than in our certainties.