<span>phenotype, genotype is the answer for the question above hope this will help.</span>
Answer:
Particulates are small particles, roughly one to a few tens of micrometers in size, suspended in the air. They are individually invisible but in large concentrations, they may give a "color" to the atmosphere. The extent to which particulates are present in the atmosphere are an important indicator of air quality.
Explanation:
The answer would be synaptic pruning.
The brain in children will have a much more synaptic connection than adults. This connection is important for learning process in the early stage of life. More synaptic connections allow multiple parts the brain areas to be connected even if there is a damage in one area.
The synapse will be cut down later in a process called synaptic pruning. Only the area that frequently used will be preserved.