Answer:
I may be wrong but try A.
The synaptic pruning during childhood results in a reduction in density of nerve cells, thus increasing the brain's efficiency.
<span>Synaptic pruning, which can include both axon and dendrite pruning, is the process of synapse elimination that occurs usually in early childhood. It is thought that this is the brain’s way of removing connections in the brain that are no longer needed and a way of maintaining more efficient brain function.</span>
Answer:
That you should treat everything like its dangerous, you shouldn't mix everything together when not told to, safety, planning, critical thinking, decision making.
Answer:
C.
It controls the entry and exit of substances.