Answer:
I believe the answers are A, B, and C
Explanation:
Hope I'm right
Strengthening and weakening the connections between neurons, known as synapses, is vital to the brain's development and everyday function. One way that neurons weaken their synapses is by swallowing up receptors on their surfaces that normally respond to glutamate, one of the brain's excitatory chemicals
Life style, environment toxins, and Gene mutations
Answer:
First Answer is 90,000 secound Answer is 19 last Answer is 55.
Explanation:
Can get Brainlest plz.
