How did kepler improve on copernicus's model

Wht happens as electrons in the electron transport chain release their energy

Texas has an impending storm, and california is experiencing a water crisis. match the technologies with the state that can use them to reduce the effects eddies natural hazards. texas is the storm cellar and the wood that is crisscrossed. california is the dam and the storage tanks

Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities