What are the catalysys necessary for fermentation to take place?

Awave has a wavelength of 15 mm and a frequency of 6 hertz. what is its speed?

What is the problem in this article? what solution does the article propose?

Amarine ecologist has constructed the conceptual model shown in the diagram. what predictions can be made from using this model? where the tertiary consumers get their energy how often primary producers are able to reproduce when bacteria and fungi initiate the process of decomposition whether other secondary consumers are present