For a given po₂, hemoglobin unloads more oxygen at temperatures.

temp-hgher temp results in more unloading bohr effect-A more active tissue generates more CO2, which lowers its pH and that induces more O2 unloading bisphosphoglycerate (BPG)-A metabolite in RBCs that binds to oxyhemoglobin and promotes O2 unloading

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Wetlands form where water and land meet. a lake with a wetland fringe can fill in with decayed plant and animal material to become a wet meadow. a pond can fill in to become a bog or fen. sediment can fill in a river marsh to become a swamp.flooding of coastal lowlands from rising sea levels has created broad coastal marshes that are protected from wave action by barrier islands or reefs. coastal wetlands also form when rivers deposit sediment as they reach the ocean. plants then take root and hold the soil firm against the forces of tides and waves.