C. All cells arise form previously existing cells. This is because the scraped knee's cells would be replaced by the exact same ones that were removed. Kind of like "Out with the old and in with the new... yet the exact same..!"
Hope this helps!
I don't know what options you have but in a situation of panic like this one, the sympathetic division of the nervous system is dominant. <span>The sympathetic division prepares the body for this situation in two possible ways to ensure survival: fight our flight. There will be increased </span><span>blood to vital organs(
<span> adrenaline</span>
<span> oxygen circulation),</span><span> blood clotting (minimizes loss of blood if wounded),</span> <span> peripheral vision (improves vision), etc to make a better response.
The answer is probably: dominance
</span></span>
A traveling clot that suddenly blocks a blood vessel is an embolism
<u>Answer:</u>
<em>There are innermost serious membranes that cover the heart is Parietal Pericardium.</em>
<u>Explanation:</u>
Heart is <em>covered by pericardium</em> in two sides, inner and outer sides. The inner membrane is parietal pericardium and the outer one is visceral pericardium. Pericardium is made up of <em>fiber tissues</em> that strongly protect the heart from all around.
The<em> main function of pericardium</em> is to protect the heart from any injuries and prevent the infections. The serious pericardium helps in<em> lubricating the heart. </em>
A sea sponge is what mimics a synthetic sponge
