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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.
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.
Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.
Blood is approximately twice as thick as water because of the cells and other components found in it.
![GI series. (a) Upper GI series begins with a barium swallow, barium shake, or barium meal. (b) Lower](https://biology-forums.com/gallery/47/medium_14755_26_10_12_5_23_55_96931000.jpeg)
![A depiction of slaves on a South Carolina plantation, around 1790. Likely of Yoruba descent, they pl](https://biology-forums.com/gallery/47/medium_374628_15_08_15_11_48_06_22225546.jpeg)