Answer:
The pacemaking signal generated in the sinoatrial node travels through the right atrium to the atrioventricular node, along the Bundle of His and through bundle branches to cause contraction of the heart muscle.
Imperialism is basically just giving a country more power and building a stronger military.
I would connect this with B, i’m pretty sure.
Explanation:
Amoeba proteus is a microscopic living organism which consists of a single cell. Like all cells, it has cytoplasm, nucleus, cell membrane and a variety of inclusions in the cytoplasm. Pseudopodia are temporary finger like projections with blunt rounded tips which are constantly being given out or withdrawn by the body.
hope it helps