HONORS BioChem Test 20-1 The electrons that are lost, gained, or shared in chemical bonds are called
valence electrons
chemical electrons
Lewis electrons
none of the above

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.

the answer is a) cell division.

hope this !

phaneritic textures in which phaner means visible so phaneritic textures are standard of impertinent volcanic rocks. these rocks crystallized gradually under the surface of earth. when the magma cools deliberately then the ores have chance to develop and produce long crystals.