Here's why:
* Reproduction creates new individuals: This is the fundamental way that species perpetuate themselves. Without reproduction, a species would eventually die out as individuals age and die.
* Passing on genetic information: Reproduction allows for the passing on of genetic information from parents to offspring. This ensures that the species' characteristics are maintained and can evolve over time.
* Adaptability: Genetic variation introduced through reproduction allows for species to adapt to changing environments and survive.
While other life processes are crucial for survival (like nutrition, respiration, excretion, etc.), reproduction is the only one that guarantees the continuation of a species.