For shared electrons. When the pull 9. Electronegativity is defined as the
covalent bonds.
towards each atom is equal, the bonds formed are called
covalent bonds are formed.
When the pull for electrons is not equal,

What are the formed elements (cell or parts of cell) in blood and what are their functions ?

Guard cells control which event? the growth of plants capture of solar energy gas exchange in leaves water absorption in roots

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of