Put these events in the correct chronological sequence:1. End-plate potentials trigger action potentials.2. Transverse tubules bring potentials into the interior of the cell.3. Acetylcholine binds to receptors on the motor end plate.4. Ca2+ is released from the sarcoplasmic reticulum.

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

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.

What noticeable trend from this graph might be used to make a conclusion?