ThMelvin suffers from schizophrenia. One of his symptoms is that while talking to others, he will abruptly stop speaking, often in mid-sentence. He complains that he suffers these same types of involuntary interruptions in his thoughts, too. Melvin's symptoms represent .

Thought Blocking Syndrome

Explanation:

Thought blocking AKA Sperrung. or simply blocking is a phenomenon that occurs in people with psychiatric illnesses (usually schizophrenia), occurs when a person's speech is suddenly interrupted by silences that may last a few seconds to a minute or longer.

When the person begins speaking again, after the block, they will often speak about a subject unrelated to what was being discussed when blocking occurred. It is described as being experienced as an unanticipated, quick and total emptying of the mind. People with schizophrenia commonly experience thought blocking and may comprehend the experience in peculiar ways. A person with schizophrenia might swy that another person has removed their thoughts from their brain.

Thought blocking syndrome

Explanation:

Thought blocking is a thought condition usually caused by a mental

health condition such as schizophrenia. During thought blocking, a

person stops speaking suddenly and without explanation in the

middle of a sentence. People who experience this symptom report

that they feel like the thought has been removed from their brains.

Thought blocking can occur at any time during speech, but is

particularly common when a person is discussing a psychologically

sensitive topic. For example, a person might begin discussing

childhood abuse with her therapist and then stop speaking midway

through the sentence. When the therapist asks the person to

continue, the person may respond that she completely forgot what

she was going to say.

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation:

the answer is d.) homologous; have mammary glands