If you mean things every blog should have, there are some sections, but the main are posts and comments.
what are the different componets in a volcano what are the different componets in a volcano what are the different componets in a volcano
Series - parallel circut
Monkeys
phosphoilpid
Proteins
Cardio
Magnitude and direction.
spiral energy
Collagen fibers
The motherboard
Time , action , communication
cytoplasma and mitochondrion