What happened to organisms that have adaptations that no longer work for the environment

The pronunciation aid that determines the stress placed upon a syllable is the

Crossing over is a method of (blank)?

Which of the following describes how binary fission and mitosis are similar? a)they are both used for growth or repair b)they both break down membrane-bound nuclei c)both invoke the replication of a single stand of dna d)both replicate genetic material