Proteins<span>: Large molecules composed of one or more chains of amino acids in a specific order determined by the base sequence of nucleotides in the DNA coding for the </span>protein<span>. </span>Proteins<span> are required for the structure, function, and regulation of the body's cells, tissues, and organs.</span>
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Answer:
Prostaglandins
Explanation:
Prostaglandins are a class of lipids, that are secreted in the event of an injury, tissue damage or contraction. They're said to occur in almost every human organ. Contraction simply put, is when the inner muscles, the uterine begins to tighten and release at intervals during or before child-birth. So prostaglandins in this case helps to cause these contractions to occurr. it does this by also softening the cervix, making it ready for contraction.
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Answer:
The heart is a muscular organ about the size of a fist, located just behind and slightly left of the breastbone. The heart pumps blood through the network of arteries and veins called the cardiovascular system.