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Author Question: What is considered the most primitive true animal? A) Porifera B) Cnidaria C) Annelida D) ... (Read 51 times) |
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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.
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The longest a person has survived after a heart transplant is 24 years.