Actor michael j. fox suffers from parkinson’s disease. he experiences muscle rigidity, involuntary tremors, and difficulty initiating movement. these symptoms are thought to result from degeneration of neurons in the ,an area rich in the neurotransmitter dopamine.

Cells in the substantia nigra start to die.

answer; i believe that the correct answer is (behavioristic)good luck

there are no options provided but you can choose among the following gender-neutral pronouns: zir, hir, eir, vis, tem, eir.

in the normal course of maintaining a pronoun-antecedent agreement, we could have used the words his or her but since we are also required to use gender-neutral language, we need to replace it with its equivalent gender-neutral pronoun.