Psychology | Custom PHD Thesis

Psychology
Questions 1 to 20: Select the best answer to each question. Note that a question and its answers may be split across a page break, so be sure that you have seen the entire question and all the answers before choosing an answer.

1. Which of the following motor achievements, on average, occurs last?
A. Rolls from back to side
B. Rolls from side to back
C. Sits alone
D. Grasps cube

2. Which of the following is a correct statement about gametes?
A. Gametes are the result of the uniting of the sperm and the ovum at fertilization.
B. Gametes are created with twice the usual number of chromosomes.
C. Gametes are formed through a cell division process called mitosis.
D. Gametes are formed through a cell division process called meiosis.

3. Even tiny amounts of _______ in the paternal bloodstream cause a dramatic change in the sex ratio of offspring.
A. dioxin B. lead
C. PCBs
D. mercury

4. Characteristics that vary on a continuum among people, such as height, weight, intelligence, and personality, are due to
A. polygenic inheritance.
B. dominant–recessive relationships.
C. genomic imprinting.
D. incomplete dominance.

5. Twelve-month-old Britney picks up a raisin from the table. Britney is most likely using
A. proprioception.
B. the ulnar grasp.
C. the pincer grasp.
D. prereaching.

6. Experience-expectant brain growth refers to the
A. results of traumatic experiences.
B. additional growth and refinement of established brain structures.
C. young brain’s rapidly developing organization, which depends on ordinary experiences.
D. growth that occurs throughout the lifespan.

7. The risk of bearing a baby with Down syndrome rises dramatically with
A. maternal age.
B. paternal age.
C. paternal radiation exposure.
D. maternal smoking.

8. If baby Jaymie has a combined Apgar score of 7, doctors should
A. put her in an incubator.
B. provide immediate emergency assistance.
C. hand her to her parents, as she is in good physical condition.
D. provide some assistance in establishing breathing.

9. Individuals who know that genetic problems exist in their families are good candidates for _______ before deciding to conceive.
A. psychotherapy
B. chorionic villus sampling
C. amniocentesis
D. genetic counseling

10. _______ is the only pituitary secretion produced continuously throughout life.
A. Estrogen
B. Growth hormone
C. Testosterone
D. Thyroxine

11. The sex of a new organism is determined by
A. the genes on the X chromosome.
B. whether the ovum is carrying an X chromosome or a Y chromosome.
C. whether the sperm fertilizes an X-bearing or a Y-bearing ovum.
D. whether an X-bearing or a Y-bearing sperm fertilizes the ovum.

12. Enrique is two months old, painfully thin, and in danger of dying. His mother is too malnourished to produce enough breast milk, and bottle-feeding is inadequate. What is the most likely cause of Enrique’s illness?
A. Iron-deficiency anemia
B. Marasmus
C. Lack of thyroxine
D. Kwashiorkor

13. Which of the following activities would promote experience-dependent brain growth?
A. Playing peekaboo
B. Bathing before bedtime
C. Weaving an intricate rug
D. Sharing a meal

14. Which of the following newborns is the most likely to feel pain especially intensely?
A. Helen, who was born two days after her due date
B. Demitria, who was born on her due date
C. Miguel, who was born three weeks before his due dateD. Miranda, who was born eight days after her due date

15. Which of the following statements is true about preschoolers and nutrition?
A. Preschoolers left to their own devices will naturally consume a balanced diet.
B. Preschoolers have very predictable appetites.
C. Preschoolers’ wariness of new foods is adaptive.
D. Parents should worry if their preschooler’s diet varies in amount eaten from meal to meal.

16. Napping usually subsides
A. between 18 months and 2 years.
B. by about 18 months.
C. between 3 and 5 years.
D. around 6 to 9 months.

17. Baby Andrea’s head and chest are growing at a greater rate than her trunk and legs. This is an example of the
A. velocity curve.
B. proximodistal trend.
C. distance curve.
D. cephalocaudal trend.

18. Which of the following is one reason why the United States lags behind other industrialized nations in immunization?
A. There haven’t been any outbreaks of childhood diseases in the U.S., even in areas where many parents refuse to immunize their children.
B. Vaccines aren’t usually available in U.S. public health clinics.
C. Some parents have been influenced by media reports suggesting a link between vaccines and autism.
D. Not all medically uninsured children in the U.S. are guaranteed free immunizations.

19. In Western nations, _______ percent of the population is right-handed.
A. 40
B. 5
C. 90
D. 25

20. _______ is an example of incomplete dominance.
A. PKU
B. Sickle cell anemia
C. Marfan syndrome
D. Cooley’s anemia
Cognitive and Language Development

Questions 1 to 20: Select the best answer to each question. Note that a question and its answers may be split across a page break, so be sure that you have seen the entire question and all the answers before choosing an answer.

1. In Sternberg’s theory, individuals who are high in practical intelligence excel at
A. generating solutions to novel problems.
B. acquiring task-relevant and metacognitive knowledge.
C. tasks assessing nonverbal abilities.
D. adapting their thinking to fit with the demands of their everyday worlds.

2. Toddlers in Substage 6 of the sensorimotor period can solve object-permanence problems involving invisible displacement because they’ve developed the capacity to
A. construct mental representations.
B. carry out means–end action sequences.
C. engage in goal-directed behavior.
D. understand dual representation.

3. _______ exposes children to great breadth of language knowledge, and is especially helpful in modeling how to communicate in a clear, coherent narrative style.
A. Dialogue with caregivers about storybooks
B. Observing adults’ conversations
C. Reading aloud with same-age peers
D. Independent exploration of picture books

4. Before Binet and Simon’s test, other researchers tried to assess intelligence using
A. simple measures of sensory responsiveness and reaction time.
B. measurements of the skull’s physical dimensions.
C. experimental hypnosis.
D. interviews and observations of behavior.

5. Social interactionists believe that children’s _______ language development.
A. social competencies and language experiences greatly affect
B. built-in LAD is solely responsible for
C. neural processing speed determines
D. native language dictates the pace of

6. Two-year-old Jenna is taught nonsense words for a noun (pling for a soft, cuddly puppet) and a verb (dass for a rocking motion). Jenna is likely to
A. understand both new words, but is unlikely to use them in spontaneous speech.
B. produce novel word combinations with the new verb.
C. confuse the new noun with the new verb.
D. easily combine the new noun with words she knows well.

7. Which of the following questions is most likely to appear first in a young child’s speech?
A. “Where Mommy hiding?”
B. “Why is Sally sad?”
C. “Daddy go work?”
D. “What you are eating?”

8. Theresa is in a period of the most energetic development of her executive function. What is her age range?
A. She is in late adolescence.
B. She is in the preschool years.
C. She is an emerging adult.
D. She is in her school years.

9. Phonological development is largely complete by age
A. 4.
B. 3.
C. 5.
D. 2.

10. Research on creativity demonstrates that
A. extensive knowledge isn’t necessary to make a creative contribution to a field.
B. creative people tend to have little patience and persistence in the face of obstacles.
C. IQ and creativity are highly correlated.
D. creativity involves alternating between divergent and convergent thinking.

11. Research conducted with Kanzi, a bonobo chimp,
A. indicates that chimps are better at communicating through the use of written, rather than visual, symbols.
B. proves that chimps are capable of communicating basic needs, but nothing else.
C. shows that bonobos are capable of conversation that includes asking questions and sharing information.
D. produced no definitive results about Kanzi’s linguistic achievements.

12. Ella is African American. As she goes through middle childhood, she will most likely
A. become increasingly conscious of ethnic stereotypes.
B. be indifferent to ethnic stereotypes.
C. become less conscious of ethnic stereotypes.
D. be immediately assigned to remedial classes when she performs poorly on an IQ test.

13. Which of the following statements is true regarding the consequences of abstract thought?
A. Sense of omnipotence is moderately associated with depression and suicidal thinking.
B. Sense of personal uniqueness eliminates sensitivity to criticism.
C. The imaginary audience discourages independence from parents.
D. The imaginary audience helps teenagers maintain important relationships.

14. Preschoolers don’t understand why puns are funny because they haven’t yet developed the ability to
A. appreciate the multiple meanings of words.
B. deal with word meanings on an entirely verbal plane.
C. extend language meanings through metaphor.
D. handle unconventional word meanings.

15. A central goal of the information-processing approach is to
A. develop applications for classroom learning.
B. describe the normative course of cognitive development.
C. refine and revise Piaget’s theory.
D. uncover mechanisms of change.

16. Chomsky’s language acquisition device (LAD) refers to
A. computer programs that attempt to generate the linguistic rules that are needed for language acquisition.
B. instructional techniques for children with speech and language delays.
C. speech programs that parents can use to teach their children grammatical rules.
D. an innate system that permits children to combine words into grammatically consistent, novel utterances.

17. Children use current schemes to interpret their world in the process of assimilation, whereas _______ allows them to create new schemes or adjust old ones after noticing that their current way of thinking doesn’t capture the environment completely.
A. organization
B. adaptation
C. accommodation
D. equilibration

18. Which of the following statements is true regarding cooperative learning?
A. The extent to which children achieve independence is key to fostering cooperative learning.
B. A single peer interaction is more beneficial than interactions with multiple peers.
C. Children’s problem solving improves most when their peer partner has equal expertise on the task.
D. For cooperative learning to succeed, Western children usually require extensive guidance.

19. Three-year-old Serena refers to a squirrel as a “rabbit,” but points correctly to a squirrel when given the word squirrel in a comprehension task. Serena probably has
A. difficulty pronouncing the word squirrel.
B. a hearing disability.
C. difficulty recognizing squirrels.
D. difficulty discriminating between squirrels and rabbits.

20. Which of the following statements is true regarding working memory?
A. Working memory is the conscious, reflective part of our mental system.
B. The capacity of working memory is far more restricted than that of the sensory register.
C. Most school-age children can hold 10 to 12 items in their working memory.
D. The capacity of working memory is far greater than that of the long-term memory store.
Personality and Social Development

1. To manage her emotion, 12-year-old Britney appraises the situation as changeable, identifies the difficulty, and decides what to do about it. Britney is using
A. a secure base.
B. emotion-centered coping.
C. emotional self-efficacy.
D. problem-centered coping.

2. In 1990, shyness in Chinese children was positively associated with being well-adjusted. However, as China’s market economy expanded and the valuing of _______ increased, the direction of the correlations shifted.
A. timidity
B. passivity
C. collectivist values
D. sociability

3. In response to the Heinz dilemma, Bill says, “You shouldn’t steal the drug because you’ll be caught and sent to jail if you do. If you do get away, the police would catch up with you any minute.” Bill is most likely in the _______ stage.
A. morality of interpersonal cooperation
B. social-order-maintaining orientation
C. punishment and obedience orientation
D. instrumental purpose orientation

4. Eight-year-old Oren has just begun describing other people’s personalities. He is most likely to describe someone as
A. “always fighting with people.”
B. “angry and sad.”
C. “tall and thin.”
D. “boring and dull.”

5. People group the causes of their own and others’ behavior into which of the following two broad categories?
A. innate and conditional
B. environmental and psychological
C. automatic and deliberate
D. achievement and social

6. Despite their higher academic achievement, Chinese and Japanese children score lower in self-esteem than U.S. children. Research suggests that this difference may be partly due to _______ among Chinese and Japanese children.
A. high levels of anxiety and depression
B. low achievement motivation
C. conditional parental support
D. a strong emphasis on social comparison

7. Gender-schematic thinking is so powerful that when children see others behaving in gender-inconsistent ways, they
A. become more pronounced in their gender segregation as well as gender-role conformity.
B. experience a crisis of gender labeling that disrupts peer interactions.
C. often can’t remember the behavior or distort their memory to make it gender-consistent.
D. object and tell that person not to behave in such a way.

8. Dr. Arbus is interested in learning how children come to understand their multifaceted world. In her research, she asks questions like, “When do infants discover that they are separate beings, distinct from other people and objects?” Dr. Arbus is studying
A. the inner self.
B. self-concept.
C. personality development.
D. social cognition.

9. Infant Doris has an attachment quality that changes from one insecure pattern to another. Doris is probably
A. being raised by a single mother who has strong social support.
B. from a middle-SES family with strong attachments to several caregivers.
C. growing up in a low-SES family with many daily stresses.
D. from a high-SES family with many children.

10. The connection between mature moral reasoning and action is
A. nonexistent due to the fact that theoretical morality and real-life morality are based on different constructs.
B. strong due to the realization that behavior reflects thinking and judgments.
C. modest due to the influence of empathy, sympathy, and guilt.
D. weak due to the impact of personal relationships on the decision-making process.

11. By the end of the first year, babies become increasingly skilled at
A. establishing an internal working model.
B. labeling their feelings.
C. social smiling.
D. joint attention.

12. Research findings suggest that language is _______ teach children about gender stereotypes and gender roles.
A. a powerful indirect means to
B. not a factor in the way that parents
C. the only method to
D. the primary means through which parents

13. U.S. child-care settings providing the very worst care tend to serve _______ families.
A. middle-SES
B. ethnic minority
C. low-SES
D. high-SES

14. Because 4-year-old Damon is a nonpersister, his self-esteem is most likely
A. unaffected by adult feedback.
B. unrealistically high.
C. based entirely on inner standards.
D. based entirely on others’ judgments

15. Which of the following four babies who went to the doctor for the same vaccination will most likely remember it better?
A. Mari, who smiled and cooed at the doctor
B. Bina, who was highly upset by the injection
C. Wyatt, who was startled by the injection, but didn’t cryD. Juan, who remained alert throughout the appointment

16. Gender-stereotype flexibility rises as children develop
A. the cognitive capacity to integrate conflicting social cues.
B. noticeable physical and pubertal changes.
C. an understanding that males and females have different abilities and preferences.
D. social skills that enable them to work and play with members of the other sex.

17. The development of autobiographical memory is linked with the emergence of the _______ self.
A. working
B. remembered
C. semantic
D. social

18. Three-year-old Ally throws a block at her sister, who starts to cry. Her mother says, “Your sister is crying because you hurt her.” Ally’s mother is using _______ as a form of discipline.
A. reverse psychology
B. construction
C. induction
D. abuse

19. Which of the following refer to the public face of gender in society?
A. Gender roles and gender identity
B. Gender stereotypes and gender roles
C. Gender stereotypes and gender identity
D. Gender identity and gender typing

20. After seeing two little boys taunt another child on the playground, Najai tells the teacher that they should make playground rules that protect other people’s rights and welfare. Najai is requesting a common set of
A. moral imperatives.
B. matters of personal choice.
C. moral ideals.
D. social conventions.
Contexts for Development

1. When pairs of infants are brought together in a laboratory, _______ is/are present at 3 to 4 months.
A. looking accompanied by occasional touching
B. viewing one another as playmates
C. reciprocal exchanges and imitation of behavior
D. peer-directed smiles and babbles

2. As two preschoolers play “school,” one pretends to be the teacher and the other pretends to be the student. The children are engaged in _______ play.
A. constructive
B. functional
C. parallel
D. cooperative

3. In the Vygotsky-based innovation, _______, where teachers guide the overall process of learning, no other distinction is made between adult and child contributors.
A. Montessori education
B. homogeneous grouping
C. communities of learners
D. transitional education

4. Effective parenting of adolescents strikes a balance between
A. autonomy and acceptance.
B. friendship and discipline.
C. connection and separation.
D. discipline and psychological control.

5. Societal order responsibilities that were once a function of the family are now assumed by _______ institutions.
A. exploitative corporate
B. agricultural
C. political and legal
D. industrial

6. Because social maturity in early childhood contributes to later academic performance, a growing number of experts propose that
A. temperamentally shy, impulsive, and emotionally negative children be taught separately from their prosocial agemates.
B. kindergarten teaching focus almost exclusively on social skills rather than academic instruction.
C. readiness for kindergarten be assessed in terms of not just academic skills but also social skills.
D. preschool education be made mandatory for children.

7. The main difference between a clique and a crowd is that
A. crowd membership predicts academic and social competence.
B. clique membership is based on reputation and stereotype.
C. a crowd is a more loosely organized group.
D. crowd membership is more important to girls than to boys.

8. If Ebony is excluded from her peer group, she
A. will probably concentrate more on her schoolwork.
B. will easily find another peer group with interests similar to her own.
C. may turn to a more popular group for acceptance and support.
D. may find it difficult to join other groups if her previous behavior toward them was hostile.

9. In Mr. Yi’s classroom, students participate in a wide range of challenging activities with teachers and peers, with whom they jointly construct understandings. Mr. Yi most likely teaches in a _______ classroom.
A. traditional
B. Montessori
C. social-constructivist
D. philosophical

10. Karina has just been placed in a low-ability reading group. What is a probable outcome of this placement?
A. Karina will view herself as more intelligent than others in the group.
B. Karina will exhibit an increase in academic motivation.
C. Karina’s reading achievement will quickly improve, which will increase her self-esteem.
D. Karina will exhibit a drop in academic self-esteem.

11. _______ grants children the confidence, social-cognition understandings, and social skills they need to enter the world and form gratifying peer relationships.
A. Authoritarian parenting
B. A secure attachment bond
C. Coregulation
D. Emotional support

12. Among preschoolers, younger children’s play is
A. more cognitively and socially mature in single-age classrooms than in mixed-aged classrooms.
B. often characterized by competition and object assertion.
C. more cognitively and socially mature in mixed-age classrooms than in single-age classrooms.
D. often immature and functional, particularly for boys.

13. Valencia’s neighbor, Anna, is a single parent who works two jobs to make ends meet. Valencia often stops by Anna’s house, listening to her concerns. Valencia is providing
A. direct assistance with child rearing.
B. social support that leads to parental self-worth.
C. a crutch for Anna, which will compromise her child-rearing skills.
D. access to valuable information and services for Anna.

14. From an evolutionary perspective, an extended relationship between a man and a woman increased male certainty that her baby was actually his offspring, which
A. proved to the tribal elders that the couple was committed to child rearing.
B. motivated him to care and provide for mother and child.
C. ensured consistent sexual activity, which increased chances of survival.
D. decreased male competition for mates among tribal groups.

15. Kareem is a high risk taker, engages in unprotected sex, and claims that he will “do anything on a dare.” Kareem is most likely a member of which of the following groups?
A. Nonconformists
B. Normals
C. Jocks
D. Partyers

16. Kadin attends a school that includes multiage classrooms, teaching materials specially designed to promote exploration and discovery, long time periods for individual and small-group learning in childchosen activities, and equal emphasis on academic and social development. Kadin attends a
A. Head Start program.
B. private preschool.
C. boarding school.
D. Montessori preschool.

17. Eva plays near other children with similar materials, but she doesn’t try to influence their behavior. She is involved in
A. cooperative play.
B. parallel play.
C. nonsocial activity.
D. associative play.

18. If Evita has a history of drug use, delinquency, and aggression in peer relationships, the likelihood that she will
A. engage in risky sexual behavior decreases.
B. experience dating violence increases.
C. experience a satisfying, long-term relationship increases.
D. engage in unhealthy weight control tactics decreases.

19. Mr. Garcia is often impatient and uses harsh discipline with his 4-year-old son, Liam. Liam, in turn, is aggressive and rebellious. This example illustrates a/an _______ influence on development.
A. third-party
B. direct
C. temporal
D. indirect

20. Ephraim has an above-average IQ, but has extreme difficulty in reading. Ephraim most likely
A. is an underachiever.
B. has a learning disability.
C. has a hearing impairment.
D. has mild mental retardation.
Psychology: The Science of the Mind

1. According to a Gestalt principle called _______, when we’re looking at a crowd of people, we tend to perceive people grouped close together as belonging to a common or related group.
A. proximity
B. closure
C. simplicity
D. expectancy

2. Regarding the association areas of the cerebral cortex, which of the following statements is most accurate?
A. The association areas are largely responsible for neurogenesis.
B. Association areas are to thinking as neuroplasticity is to language.
C. Most association areas are located in the left cerebral hemisphere.
D. Changes in personality may indicate damage to the association areas.

3. Among his oil-field buddies, Conrad was known as a cheerfully profane hard drinker who was seldom averse to a barroom scrap. But, after he suffered a head injury in a car accident he returned to work as a docile, timid man who could no longer deal with the violent activity of a drill rig platform. His physicians determined that damage to his __________ was the likely cause of his changed behavior.
A. hippocampus
B. thalamus
C. amygdala
D. cerebellum

4. Which of the following statements regarding depth perception is true?
A. The change in position of an object relative to the retina is a binocular cue.
B. Experience teaches us to perceive relative size as an indicator of the color of an object.
C. Texture gradient is a monocular cue.
D. Motion parallax is detected because we perceive binocular disparity.

5. In the autonomic division of the nervous system, preparing the body for action under conditions of stress is to the sympathetic division as pupil dilation and inhibited digestive processes are to the _______ division.
A. peripatetic
B. sympathetic
C. peripheral-autonomous
D. peripheral-somatic

6. Which of the following statements regarding processing is true?
A. Top-down processing is a process of recognizing and processing components of a pattern.
B. Top-down processing allows us to fill in the gaps in an incomplete or ambiguous pattern.
C. Bottom-up processing allows us to fill in the gaps in an incomplete or ambiguous pattern.
D. Bottom-up processing is guided by experience, expectations, and motivations.

7. You’ll need to select a sample that represents a larger group when you’re conducting
A. a case study.
B. naturalistic observation.
C. archival research.
D. survey research.

8. Among the advanced technologies used to study the brain’s structure and functions, which one provides detailed three-dimensional images of the brain’s structures and activities?
A. Electroencephalogram
B. Positron emission tomography
C. Transcranial magnetic stimulation
D. Functional magnetic resonance imaging

9. In a neuron, the myelin sheath serves to insulate
A. the cell body.
B. the axon.
C. dendrites.
D. terminal buttons.

10. Within the cerebral cortex, the _______ area is found in the occipital lobe.
A. association
B. visual
C. somatosensory
D. main auditory

11. In his research, Dr. Caulfield wants to compare levels of test anxiety among high school students in grades 10 and 12. His hypothesis is that seniors will have higher levels of test anxiety than sophomores will. His _______ definition of test anxiety for each person in his sample will be a self-reported test-anxiety level, marked in a questionnaire as “high,” “moderate,” or “low.”
A. functional
B. subjective
C. operational
D. theoretical

12. Rods are to light intensity as cones are to
A. the retina.
B. the iris.
C. the optic nerve.
D. color perception.

13. If you adopt the _______ perspective, you’ll reject an emphasis on what goes on in people’s minds in favor of focusing on measurable behaviors that can be objectively measured.
A. neuroscience
B. psychodynamic
C. behavioral
D. cognitive

14. By means of introspection, Dr. Marsh attempts to determine the components of things like perception, thinking, and consciousness. By contrast, Dr. Smyth wants to understand what the mind does in producing different kinds of behavior. We can reasonably assume that Dr. Marsh’s research is mainly guided by the principles of
A. structuralism.
B. Gestalt psychology.
C. objectivism.
D. functionalism.

15. Regarding the trichromatic theory of color vision, which statement is most accurate?
A. Specialized cells in the retina engage in a process called feature detection.
B. The theory maintains that receptor cells are grouped in pairs, such as black-white.
C. Specialized cells in the retina are sensitive to blue-violet, green, and yellow. D. The theory helps us understand why we see afterimages of different colors.

16. Lorraine and Albert are discussing neurotransmitters, getting ready for an exam. Lorraine maintains that neuronal dendrites sort excitatory and inhibitory messages through a process of elimination dictated by reuptake activity. Albert, on the other hand, argues that inhibitory messages always cancel out excitatory messages. Who is correct?
A. Both Lorraine and Albert are correct.
B. Lorraine is correct.
C. Neither Lorraine nor Albert is correct.
D. Albert is correct.

17. In conducting an experiment, the experimenter divides a sample group of 60 children into two groups of 30 called group A and group B. To make sure the two groups are similar in terms of age, IQ, and so on, the experimenter will assign people to either group A or B using a/an ________ assignment procedure, such as a coin toss, where heads sends a subject to group A and tails sends a subject to group B.
A. random
B. experimental
C. independent
D. subjective

18. I study a sample of 100 high school students and find that student IQ scores increase significantly as the level of reported parental income increases. I can conclude from this that
A. higher parental income causes an increase in children’s IQ scores.
B. students get smarter when their parents earn more money.
C. there’s a positive correlation between parental income and children’s IQ scores.
D. there’s a negative relationship between parental income and children’s IQ scores.

19. Dr. Lombard’s research is focused on the capacity of the human mind to store and retrieve information. Her colleague, Dr. Fry, is a clinician who strives to help his clients be “the best that they can be.” As a fly on the wall listening to the two psychologists’ friendly disputes during coffee breaks, which of these assertions would you most likely expect from Dr. Fry?
A. A person’s basic assumptions about themselves are inevitably false.
B. Mental confusion is best compared to a deficiency in short-term memory.
C. If biology is destiny the concept of free will can be only an illusion.
D. People can’t be held responsible for their life choices.

20. You could locate receptor sites involved in transmitting a nerve impulse by finding the
A. endorphins.
B. synapse.
C. neural regulators.
D. myelin.