Answer:
SA Node
Inter-nodal Pathways
AV Node
AV Bundle
Bundle Branches
Purkinje Fibers
The SA nodes functions first for setting pace for the heart, then the inter-nodal pathway make link b/w SA and AV node. AV node is site of delay when contraction of atria occurs. AV bundle is the mean of electrical link b/w atria and ventricle. The conveying of impulse to the inter-ventricular septum occurs through bundle branches, while conveying of impulse throughout and along the walls of ventricle occurs through Purkinje fibers.
Answer:
D. That is a D.N.A Molecule, which stores your gene's/ info
Answer:
B. Molecules move from areas of high concentration to areas of low concentration
Explanation:
Diffusion is the spread of something more widely.
Phosphate Backbone is teh dna sugar phosphate bases connect with each other.
Answer:
similarity: they are column shaped
difference: pseudostratified epithelial cells have cilia
Explanation: