Sensorimotor stage
Tertiary circular stage is the sub stage of sensorimotor development which happens between 12-18 months of age. At this stage, the infant passes through tertiary circular reactions of innovation and curiosity. These circular reactions are the designs in which a child deliberately investigates new possibilities with the objects and frequently involve in doing new things and searching new events.
<span>You may not operate a vehicle unless all child passengers underage??????? are either wearing a safety belt assembly or are securely fastened into an approved child restraint device.</span>
Answer:
B) The inhibition of normal myelin development in the individual's brain
Explanation:
Phenylketonuria is a disorder characterized by abnormal levels of phenylalanine in the body. It is <u>caused by mutation in DNA that leads to the deficiency of an enzyme known as phenylalanine hydroxylase, which converts phenylalanine to tyrosine</u>, a fundamental substance for dopamine production - related to working memory.
Some of the symptoms of this disorder is intellectual disability, which is caused mainly by demyelination or defective myelin biosynthesis, leading to the <u>inhibition of myelin, a fatty insulating sheath that protects nerves</u>.
Therefore, the cause of the intellectual disability in the individual is <u>the inhibition of normal myelin development in the individual's brain.</u>
Answer:
An operational definition is the preise meaning of a term used to describe a variable such as a type of behavior, which researchers want to measure.
Explanation:
Every variable used in a research must have two definitions: the conceptual definition and the operational definition. The conceptual definition is the one that can be found in a dictionary, it explains the construct and its relationship to other constructs. The operational definition defines de variable in terms of observable constructs that can be measured empirically. For example, when studying different types of behavior, the operational definition must make clear what empirical elements define each type of behavior.
