Answer:
Pollination
Explanation: If you have ever seen bee movie, you know that pollen is the most essential ingredient to flowers, which is transported and spread by bee's. if there were no more bees, there would be no way to pollinate the flowers, causing them to wither and die. Fortunately, there are other pollinators, but bees are one of the most important.
Because the AV node takes on the role of a very important delay in the cardiac conduction system. Without this delay, the atria and ventricles would contract at the same time.
<h3>Cardiac conduction system</h3>
The conduction system of the heart sends electrical signals, usually generated by the sinus nodes, causing the heart muscle to contract. Pacemaker signals originating from the sinus node travel through the right atrium to the atrioventricular (AV) along the bundle of His and through branches of the bundle, causing myocardial contraction. This signal first stimulates contraction of the right and left atria then flows to the right and left ventricles. That electric current then allows blood to be pumped throughout the body.
Learn more about sequence of travel by an impulse through the cardiac conduction system at brainly.com/question/28269433
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Answer:
When the lower esophageal sphincter is atrophied, a disease called achalasia occurs, in which there is no relaxation of the esophagus when the food is swallowed, it is difficult for the food to go down to the stomach. Some symptoms are that the food, once swallowed, can not pass and gets stuck.
Regurgitation, chest pain and weight reduction may also occur.
Answer:
When the endometrium, the lining of the uterus, becomes too thick, it is called endometrial hyperplasia. This condition is not cancer, but in some cases, it can lead to cancer of the uterus.
Explanation:
