Interpret each as higher, lower, or equal to normal blood Na+ concentration

Which technically is nasa developing that will astronauts reach mars

Legumes, a type of plant, require rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photosynthesis. rhizobia use the legumes for food. what would most likely happen to the legume population if rhizobia suddenly became extinct?

Solutions to environmental problems in europe must