Which kind of organisms use photosynthesis?

Which best describes the digestive system of arthropods? a incomplete, two openings b complete, one opening c two-way, one opening d one-way, two openings

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

Imagine you are introducing the lac operan and the trp operon to students who have never learned about it before. complete the table to compare the similarities and differences between the two operons