Answer:
The difference between evolution and heredity is time bound phenomenas
Causes of plate motion
Mantle convection currents, ridge push and slab pull are three of the forces that have been proposed as the main drivers of plate movement (based on What drives the plates? Pete Loader). There are a number of competing theories that attempt to explain what drives the movement of tectonic plates.
Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation. Some new alleles increase an organism's ability to survive and reproduce, which then ensures the survival of the allele in the population.
The role of the pacemaker or sinoatrial node (SAN) is to C) To originate excitation in myogenic muscle.