The branch of psychology that studies how a person's thoughts, feelings, and behavior are influenced by the presence of other people and by the social and physical environment is called " psychology."

Social psychology is a correct answer.

Explanation:

The branch of psychology that studies how a person's thoughts, feelings, and behavior are influenced by the presence of other people and by the social and physical environment is called '' Social psychology."

Social psychology studies about people's feelings, behaviors and thoughts are influenced by the involvement of other people.

It explains the cause of how the feelings, beliefs, thoughts, goals, and intentions are influenced by others.

Thus Social psychology is the branch of psychology which deal with the studies human interaction in the social groups and explain the social situation's impact on human behavior.

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.

a- all cells come from pre-existing cells