Answer:
Not a scientific question bevause it asks about what people think instead of how nature works
Answer:
Metabolism, Internal Respiration, Respiration, Metabolic process.
Explanation:
If These Are Big Big Words Den Me Sowwy -w- "
Answer:
mark my as brainliest and then i will give you the answer
Explanation:
you suck
The answer is atrial depolarization. The P wave of a normal electrocardiogram specifies atrial depolarization. In addition, depolarization happens in the four compartments of the heart which is both atria first and in both ventricles. The sinoatrial or as called as SA node on the wall of the right atrium starts depolarization in the right and left atria that can cause the contraction in which it is symbolized by the P wave on an electrocardiogram.
For the answer to the question above, I think the answer is simply because <span>four legs characteristic is not special to mammals but the hair that is something more important and special characteristic of the mammals, that's why. I hope this helps
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