Why might bloodworms be able to live in polluted water with not much oxygen while mayfly nymphs cannot survive?

What was kshatriyas role in society? What does beneficiary mean? What would happen if goat was no longer in the the US? Why ammonia factories near town? Why did Greenpeace stop? What countries pollute CO2 the most? Deforestation in England? What are the advantages of using native timber? Why should people abuse cutting trees? Fossil fuel with lowest sulfur content? What organism can breed and produce fertile offspring? What countries do most illegal immigrants come from and how has this affected how the US approaches the issue? Can illegal immigrant mom sue illegal resident father for child support? What percent of the pollution in the world from heating? Ask us of the following limits the freedom of both employers and workers in the labor market? My girlfriend punched you in the face you called the police and made a statement Now you feel remorse cos she is under severe stress she will now be arrested Should you call her? How did immigration quota lawas affect immigration into the US in the 1920s? What can you use to pollute the water? What can you do to stop child labor in poor developing countries? What if your parents don't know you are bullied?