Use the information and chart to answer the following questions which isotope would be expected to have the longest half life

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

Achange in which factor will affect the rate of reaction only when gases are involved? temperature pressure surface area concentration

Based on the data in the graphs do you think pepsin and trypsin are found in the same part of the body? explain your answer.