PSY 301 Midterm Exam Study GuideAnswers are Underlined in Bold1. TRUE or FALSEThe average newborn triples his/her birthweight in four months.FALSE2. Myelin is a layer of fatty tissue that protects axons and speeds transmission of information from one neuron to another.3. At birth the brain is 25% adult weight; at 2 years old, it is 75% adult weight.4. What is the difference between gross and fine motor skills?Gross motor skills involve large movements of the arms, legs, head, and torso.Fine motor skills are more exact movements of the hands and fingers.5. What is the most developed sense developed at birth? What is the least developed?The most developed sense at birth is hearing, while the least developed is sight.6. Define and understand the following:Assimilation: When we modify or change new information to fit into our schemas (what we already know).Accommodation: When we restructure or modify what we already know so that new information can fit in better.Object permanence: The realization that objects (including people) still exist when they can no longer be seen, touched, or heard.7. Phonemes are basic units of speech, which make morphemes, the smallest meaningful units of speech.8.