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ratelena [41]
3 years ago
13

During a heart attack, some of the cells on the thick layer of muscle in the heart walls die. This layer of muscle is called the

History
1 answer:
guapka [62]3 years ago
5 0
<span>Myocardium

The heart has four chambers, four valves. It is composed of cardiac muscles which all in all pumps blood throughout the human body through the blood vessels. When something gets injured around the heart, well it will automatically, in high possibility stop functioning. Take not of the valves and the most important is the sinoatrial node which is the pace maker of the heart. It is what triggers the heart to pump itself and the valves then function and the blood travels and then gets cleansed out of carbon dioxide in the alveoli.<span> </span></span>

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the earliest ancestors of about half of all extant animal phyla can be traced back to the _____ explosion.
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Answer:

Cambrian

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The earliest ancestors of about half of all extant animal phyla can be traced back to the CAMBRIAN explosion.

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Have political parties contributed to divisiveness or have they kept the country intact?​ Please Exsplain.
tankabanditka [31]

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They have kept the country intact

Explanation:

I think this is a very interesting question. In my opinion, I think they have kept the country intact, look at it this way. Political parties means that there exists choice for the people. Absence of political parties makes it a 1 man ruling without the necessary checks and balances. Like in that of a monarchical ruling t, or military ruling. Essentially, one can do and undo as one wishes.

Now, the advent of political parties brings choice, meaning the people can choose. In a situation where party A doesn't fulfill its political campaign promises, they are at risk of being voted out by the people for party B. Party B themselves won't sit down idle, while not in power, they wake the people up to the wrongdoings of party A.

Like I said, the presence of political parties brings choice to the people, and also creates checks and balances. So, yes, they have kept the country intact.

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