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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.
Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.
![With the vehicle raised one foot (30 cm) off the ground, push down on the vehicle to check if it ...](https://biology-forums.com/gallery/29/medium_548020_25_05_17_2_59_26_29501121.png)
![Many electronic components are used to construct a typical vehicle computer. Notice the quantity of ...](https://biology-forums.com/gallery/29/medium_548020_30_05_17_8_05_56_298821042.png)