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
Answer:
Girls have menstrual cycles because girls have changes of hormones in their body. The hormones make the lining of the uterus build up. This gets the uterus ready for an egg which when the egg is released it causes a period also known as a menstrual cycle which happens normally every month for at least 3-7 days.
Explanation:
1. The person's hands, after touching the raw meat and not washing their hands; The knife, when they used the same knife to cut raw meat then proceeded to cut vegetables and fruit.
2. They could have washed their hands, the knife the counter and cutting board in between uses.
3. The school should provide specific instructions to the substitute. These will show how/when to wash the materials.
4. You would have to thoroughly wash all materials to ensure no food poisoning happens.