|
|
There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.
Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.
It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.
![Multiple sclerosis (MS). (a) A disease characterized by the gradual development of small areas of ha](https://biology-forums.com/gallery/47/medium_14755_14_10_12_6_48_58_94102395.jpeg)
![This photo captures an extreme form of family socialization. The father seems to be more emotionally ...](https://biology-forums.com/gallery/47/medium_660365_19_12_16_11_52_44_24344627.png)