When you take a pain reliever like ibuprofen, it keeps injured or damaged cells from making and releasing prostaglandin. When the cells don't release this chemical, it means that the brain won't get the pain message as quickly or clearly.
Answer:
The classification of living things are
kingdom
phylum
class
order
family
genus
species
<span>ecosystems , is your answer if I'm not wrong
</span>
Answer:
The proton–proton chain, also commonly referred to as the p–p chain, is one of two known sets of nuclear fusion reactions by which stars convert hydrogen to helium.