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A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

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Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

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To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

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The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

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Everyone has one nostril that is larger than the other.

Independent assortment produces 50 percent recombinants Independent assortment produces 50 percent recombinants
Multiple crossovers can include more than two chromatids Multiple crossovers can include more than two chromatids
Independent Assortment p1 Independent Assortment p1
Remedies for insomnia include increased physical exercise and time spent outdoors. Remedies for insomnia include increased physical exercise and time spent outdoors.
The tools and equipment needed to perform a compression test include a compression gauge, an air ... The tools and equipment needed to perform a compression test include a compression gauge, an air ...
Pathogenic microorganisms include (A) bacteria, (B) viruses, (C) protozoa, and (D) helminths. Pathogenic microorganisms include (A) bacteria, (B) viruses, (C) protozoa, and (D) helminths.
Video: Digestive chemicals - types & enzymes

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