<span>a hypothetical force formerly held to pervade all nature and to manifest itself in magnetism, mesmerism, chemical action, etc.</span>
I think it is natural selection. genetic variation also could be a factor for physical variation over the years.
Answer:
They need to increase the funding of the healthcare system (like social security), they also need to increase the funding for the schools around the country, they also need to increase the funding for making improvements for making more homes for the homeless people
Explanation:
It helps your body get used to the allergen better. It just depends on the allergy.
