List two characteristics of roughage and concentrates

Actinobacteria sp. are fermenting organisms (which do you use oxygen to breathe) referred to as chemoorganohetereotrophs this means they break down organic material and convert it to inorganic material. which part of the carbon cycle does this describe

To confirm when to exclude children from school it’s recommended that you refer to guidelines from which of the following organizations

The most effective way to provide children with safety messages is to