What is a difference between atp and adp molecules?

adp can be used to directly power movement, while atp cannot.
atp molecules provide less energy to the cell than adp molecules.
atp has three phosphate groups, while adp has two phosphate groups.
adp is only made in plants, while atp is made in both plants and animals.

In this experiment you were asked to present three possible mechanisms. describe those mechanisms here and include drawings of those mechanisms. how will the bromination of trans-cinnamic acid and trans-stilbene allow you to distinguish between the three possibilities? what would you expect to find in your data in each scenario?

Which of the following statements is true? 1. the mantle of the earth is made of solid nickel and iron. 2. the crust of the earth is made of solid nickel and iron. 3. the inner core is made of solid nickel and iron.

Describe two recent or ongoing space missions.