1 This is a common form of reproduction in single-celled organisms and bacteria. 2  Eukaryotic orga ni sms like some protists and unicellular fungi also divide by fission. 3  These organisms divide through binary fission and most of them are capable of sexual reproduction. Asexual reproduction involves only one parent. 2  All the off s pring are identical to the parent. 3  Asexual reproduction does not involve the process of meiosis and fertilization, hence the process does not require a mate for reproduction. 4  This type of reproduction is seen in lower forms of organisms.
It results from arrhythmias, mechanical abnormalities, or structural abnormalities, and is generally seen in older adults. Cardiac causes of syncope often are unprovoked and are more likely to present in the emergency department. Sudden death in young adults with syncope is often the result of arrhythmias. Orthostatic hypotension can be caused by autonomic dysfunction, medications, or volume depletion resulting in syncope. It is rare in patients younger than 40 years, and is commonly seen in older patients with comorbid conditions.1,6.
It is pronounced sin-ko-pea. Syncope is due to a temporary reduction in blood flow and therefore a shortage of oxygen to the brain. This leads to lightheadedness or a black out episode, a loss of consciousness. Temporary impairment of the blood supply to the brain can be caused by heart conditions and by conditions that do not directly involve the heart.