Answer:
<h2>pulmonary trunk</h2>
Explanation:
The pulmonary valve is an important semilunar valve and found in the heart between the pulmonary artery and the right ventricle. This valve contains three cups that are responsible for the guarding of the pulmonary trunk. The pulmonary trunk is an important vessel of the heart that arises from the right ventricle and plays an important role in the circulation of the deoxygenated blood. The pulmonary trunk is called the main pulmonary artery.
The chemical reactions that absorb energy are called endothermic reactions. These reactions absorb more energy than they release. From the given options endothermic reactions are: respiration in cells, photosynthesis, activating a cod pack
The chemical reactions that release energy are called an exothermic reactions: producing electric current, burning a candle, baking bread.
Answer:
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