B - Enzymes act as catalysts because they lower the activation energy
Why people shouldn't be sent to Mars?
It's a prokaryotic cell type.
Generally people would say that the result are published in journals, and it is true that Journals are often the first opportunity for many people to read about those results.
However, it takes a long time to publish in a journal, and people often present their results to a smaller audience at a conference before the journal is ready.
