Describe a function of each of the components making the tissues of the air passage of the human breathing system ? 6 marks ( I not able to understand question plz tell what to write here)

Categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. makes predictions

Fossils of ancestors of the modern horses show a small 4-toed almost dog-like browsing animal named eohippus over time the horses got larger lost toes and changed to a grazing diet what is the best explanation of why this change occurred

This is the nitrogenous base only found in rna