According to general adaptation syndrome (gas), what occurs at the first, or most immediate, level of stress response?

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?

How do you date a sample of rock that you suspect as being one of the earliest on earth

Penelope studies how the structure and function of the nervous system is related to behavior. she is a psychologist