What traits do archaeans and bacteria share?

These are both  microscopic, unicellular organisms of no cell organelles; that is they lack the basic organelles of cells like the mitochondria, endoplasmic reticulum, nucleus etc.Their genetic materials are conserved in a single circular chromosomes, unlike in eukaryotes where they are packed   in nucleus. Other similarities are:

Both  are Prokaryotes.

They both lack nucleus

They both lack membrane bound organelles.

They both undergo reproduce asexually by  binary fission.

Both also have plasma membranes.

Explanation:

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.

i am sorry but i need more information and a picture.