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which of the following is an example of a positive feedback? a low level of oxygen in the blood triggers production of red blood cells, which transport oxygen. an increase in blood sugar level stimulates the pancreas to secrete insulin, which lowers blood sugar level. a tear in the lining of a blood vessel triggers the accumulation of blood platelets, which cause blood to clot. nextreset

Which statements describe resources? one of the factors people use when deciding where they will live is the availability of resources. renewable resources have little value for people. resources are unevenly distributed throughout the world. energy is the world resource which has the highest use. the use of nonrenewable resources has decreased in recent history. the use of resources is evenly distributed throughout the world. the world's oil supply will last for the next forty years if its use continues as expected.

Explain how the political influence of african americans leaders became weaker.

Hurry where is the majority of earth's water found? o glaciers o oceans ground o rivers and lakes