The answer is obsessive-compulsive disorder. Compulsive and usually unwanted thoughts and actions (rituals) are the common features of the disorder. Although OCD is usually associated with repeating the actions over and over, such as obsessive hand-washing or having to flick a light switch a certain number of times, many people who suffer from OCD struggle with frequent unwanted thoughts and images.
Answer: Motor neuron effector
If you accidentally touch hot surface, you automatically
pull your hand away from the object and this response is governed by a simple
combination of neurons called reflex arcs. The sensory neurons carriers the
impulse towards the central nervous system (CNS) then the interneuron carries
these impulses within the CNS, while the motor neuron carries impulse away from
CNS. Therefore, motor neuron is the last structure to respond to a reflex.
Answer:
Epidemiological.
Explanation:
Epidemiological study may be defined as the type of study that includes the different group of the human population to understand the factors that might affects the health.
This study also explains the risk of a particular factor in the population. In the given question, the study is done to understand the relationship between the delayed physical growth and low-income. This clearly explains the epidemological study and this study also have proper design to study the population in cohort.
Thus, the answer is epidemiological.
Sperm is a sex cell that is created by meiosis and is needed for sexual reproduction.