Interactions that destabilize the system to have feedback

A negative feedback loops is when glucose levels get too high, the body releases insulin into the bloodstream to get back to normal blood levels.

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !