what happens to the mass of the water on Earth as it moves between the four steps of the water cycle?

A. the total mass of the water is reduced because mass is not conserved in a state change
B. the total mass of water is reduced because some evaporated water remains in clouds
C. the total mass of the water is increased when it rains
D. the total mass of the water is constant because mass is conserved in a change of state

In which specialized organ of the plant would these cells most likely be found

Me with these questions if you’re it sure don’t answer

Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.