He fibrous skeleton of the heart serves as electrical insulation between the atria and the ventricles. True False

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.

the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.

answer; synapse;