Answer:
Valence
Explanation:
In an atom, the electrons at the outermost energy level is called as valence electrons. It is the valence electrons which participates and interacts with the other atoms and form bonds. The valence electrons of an atoms are important as they depict the chemical properties of an element.
Thus the valence electrons resides the outermost shell and surrounds the atomic nucleus.
Earth's mantle plays an important role in the evolution of the crust and provides the thermal and mechanical driving forces for plate tectonics. Heat liberated by the core is transferred into the mantle where most of it (> 90%) is convected through the mantle to the base of the lithosphere.
They work together to give the cells the ingredients they need to produce energy.
Answer:coastal Oregon, Washington, British Columbia, and southern Alaska in North America
Explanation:the climate characteristics of the marine west coast is its west coast location in the midlatitudes. Here maritime polar air masses are constantly coming ashore bringing mild temperatures and high humidity. In some cases like northern Europe, warm ocean currents moderate the temperature of the site.
Helper T cells become activated by interacting with antigen presenting cells. and the second blank space is either cytotoxic t cells or B cells
