What organisms would have the best likelihood of surviving the bombardment of comets and asteroids? *

Comets

Explanation:

provide the first evidence of a comet directly impacting Earth, a new study claims. The finding may help unlock some of the mysteries surrounding the birth of our solar system. Comets shed dust as they roam the solar system. These 'break ups' result in numerous small particles and fragments, called meteoroids, which orbit the sun

My guess would be microbes such as bacteria or other microorganisms

Explanation:

Microbes are hard to kill. They can survive in harsh conditions, so an asteroid impact would barely do any damage for them.

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