If organisms gradually change over long periods of geological time, they represent . A. Extinction

B. Punctuated equilibrium

C. Gradualism

D. Stasis

2. Organisms suddenly change, new species often arise due to .

E. Stasis

F. Gradualism

G. Punctuated equilibrium

H. Extinction

An atom of nitrogen had seven protons in its nucleus. how many electrons does it have

Match the following terms describing electrical events with the correct phases of the cardiac cycle. the ventricular muscle cells depolarize at the start of this phase. during this phase, na+ entry through the funny channels causes the pacemaker potential of sa nodal cells to gradually become less negative until it reaches threshold. the ventricular muscle cells repolarize right before this phase. the cytosolic concentration of calcium in the contractile cells of the ventricle is highest during this phase. a. isovolumetric relaxation b. ventricular ejection c. isovolumetric contraction d. ventricular filling

Based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?