Why does a cracker taste different after being soaked in saliva for 2 minutes?

Polar zones are cold and tend to be dry because of a pressure system of cold. low high

Crystallization from cooling magma disvribe one way that a atoms bond b protons attract electronsc ions combine d minerals form

Mattias scheiden and theodor schwann studied plant and aniaml cells under a microscope.together these men concluded that plants and aniamals are made up of cells, which scientist furthered their study to complete our mordern cell theory