What happens when the data in an investigation do not support the original hypothesis?

What is histamine and what is its role in allergic reactions

The large increase in atmospheric carbon dioxide in the last 50 years most likely comes from a. an increase in cellular respiration b. increased decomposition by bacteria c. an increase in the burning of fossil fuels d. an increase in photosynthesis

Drag the tiles to the correct boxes to complete the pairs. match the nitrogenous base of dna with its complement.