Organisms contain different levels of organization within their bodies. arachnoidiscus ehrenbergi, pictured below, is a single-celled organism that is part of the group of algae known as diatoms. which level of organization is seen in both arachnoidiscus ehrenbergi and the human stomach? cell tissue organ organ system

Cell level organization

Explanation:

Organisms are composed of different level of organizations like atomic level, molecular level, cell level, tissue level, organ  level, system level after which whole organism if formed.

If we talk about Arachnoidiscus ehrenbergi it is one celled organism belonging to a group of algae. If we talk about human stomach it is an organ made up of several tissues which in-turn are made up of several cells.

So what is common in both?

It is a cell that is common in both, because cell is the basic unit for life of Arachnoidiscus ehrenbergi and a unit of the composition of whole stomach.

Hope it help!

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.