For elbow flexion: a. triceps brachii is the synergist and biceps brachii is the antagonist.
b. biceps brachii is the antagonist and triceps brachii is the agonist.
c. biceps brachii is the agonist and triceps brachii is the antagonist.
d. biceps brachii is the synergist and triceps brachii is the agonist.
e. deltoid is the agonist and biceps brachii is the synergist.

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.

Can someone i have no idea of how to do this.

Approximately percent of the energy created by cell metabolism is used by the body to carry on its normal functions, such as respiration, digestion, reproduction, muscular movement, circulation, and cellular regrowth.