|
|
Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.
The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.
The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
![Tracheostomy. A tracheotomy, or incision into the trachea, is performed to create an opening into th](https://biology-forums.com/gallery/47/medium_14755_11_11_12_7_25_47_100681765.jpeg)
![Family interactions change in response to the developing child, and parenting characteristics, such ...](https://biology-forums.com/gallery/47/medium_667187_21_02_17_7_47_29_256752231.png)