Functions to make paramecuim more advanced than amoeba​

Complexity of paramecium over amoeba. Amoeba has no definite shape,moves by pseudopodia and must capture its food with cytoplasmic projections. ... Paramecium contain a pellice that gives it a more defined shape.It possesses cilia for movement,nuclei and a well defined mouth pore for food to enter.

Explanation:

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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.