Which level of classification contains all the others? a. kingdom b. domain c. genus d. class

The correct answer would be option b. domain.

Explanation:

Domains are the describe the type of cellular life an organism contain as if they are eukarya, bacteria or archaea domain. Domains are a superkingdom or empire, which is the highest rank or taxon in classification.

kingdom, class, genus and all other classification taxons are comprising in this domain. The three-domain classification system was introduced by Carl Woese in 1977.

Thus, the correct answer is option B. domain.

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.