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Author Question: A(n) ________ class is a class that has no direct instances but whose descendants may have direct ... (Read 44 times) |
Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.
Illicit drug use costs the United States approximately $181 billion every year.
The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.