A spore is a primitive, unicellular, usually haploid reproduction unit.
Spores can develop into new organisms either asexually through
mitosis, or through sexual reproduction by combining with other spores.
Spores do not have stored food reserves like seeds so they require more optimal conditions to germinate.
However, in their dormant state they are more resistant to unfavorable conditions,
and require less energy to start mitosis. Spores are adapted for dispersion and
survival in harsh conditions for extended periods of time. They are usually generated in large numbers. They are part of the
life cycles of ferns, algae, fungi, etc.