What are the functions of T memory cells? (2 points) To remember a specific antibody and to manufacture the corresponding antigen when needed
To remember a specific antigen and to stimulate the immune system to react faster to invasion
To recognize antibodies and to halt the activation phase in the immune system
To recognize antigens and to begin the activation phase in the immune system

option a is correct i.e.

explanation:

in context to the membrane of nerve impulse, the outer membrane of neuron is semi permeable that is only sodium ions can pass through the membrane i.e. smaller ions can pass through the membrane while larger ions cannot pass through it.

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the growth of the plants is affected by the heat of the light. what is the student doing?

its true i dont know very sorry b much < 3 big fan

explanation: