The arrangement are SA node, internal pathways, AV node, AV
bundle, Bundle branches and Purkinje fibers. The anatomy of the intrinsic
conduction system causes contraction of the ventricles to activate at the apex
and move superiorly so blood is forced upward, toward the semilunar valves.
Answer:
all functions
Explanation:
To survive, unicellular cells must carry out all functions.
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Answer:
Front the atmosphere that's from environment
The answer is B
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Answer:
silicon dioxide Si02 and diamond
Explanation:
because it's commonly found in nature