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The heart is made of three layers of tissue. Endocardium, the thin inner lining of the heart chambers that also forms the surface of the valves. Myocardium, the thick middle layer of muscle that allows your heart chambers to contract and relax to pump blood to your body.
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some consequences of prejudice , discrimination , racism and sexism your career can be ended, your reputation will be ended, if you are use prejudice discrimination racism and sexism in a act of violence you can go to jail.
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ang alin ang ihelp sagutan ko bili!grade?
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