The lymphatic system Although blood is thought to be the main medium of transport for material around the cell, there is another fluid that serves the cells and is a vital link between the cells and the blood circulation. About 90% of the fluid that leaks out of the capillaries eventually seeps b...

Unit 2 Biology- FUNCTIONING ORGANISMS SAC- 'Essay on transport systems' "Transport systems play an essential role in the survival of flowering plants and mammals" Transport systems play an essential role in the survival of flowering plants and mammals. These organisms re...

In the beginning diseases were thought to be a kind of punishment from God, rather than an infection caused by a foreign body. Later this was found to be untrue, and we now have an entire field of science devoted to the study of these diseases, the foreign bodies that cause them, and treatments for ...

What are plasmacytoma and multiple myeloma? Plasmacytoma is cancer where abnormal plasma cells called myeloma cells form a tumor in the bone. Multiple myeloma is when you have more than one tumor. Multiple myeloma is a rare and life-threatening cancer of the bone marrow. (Kindersley, 2004) When my h...

Being one of the most fatal viruses in the world, AIDS (Acquired Immunodeficiency Syndrome) is now a serious public health concern in most major Canadian and American cities and in countries worldwide. Since 1986 there have been impressive advances in understanding of the AIDS virus. Even though...

In 1981, a new fatal, infectious disease was diagnosed--AIDS (Acquired Immuno-Deficiency Syndrome). It began in major cities, such as New York, Los Angeles, Miami, and San Francisco. People, mostly homosexual men and intravenous drug users, were dying from very rare lung infections or from a ca...