Search results
17 hours ago · Patrol Duty: White blood cells constantly circulate through our bloodstream and tissues, patrolling for signs of invaders like bacteria, viruses, or fungi. Detection: WBCs have specialized receptors on their surfaces that can identify common markers found on pathogens.
17 hours ago · Influenza, commonly known as " the flu " or just " flu ", is an infectious disease caused by influenza viruses. Symptoms range from mild to severe and often include fever, runny nose, sore throat, muscle pain, headache, coughing, and fatigue. These symptoms begin one to four (typically two) days after exposure to the virus and last for about ...
17 hours ago · Thickness of cell membrane: 10 −8: 10 nm: 10 nm Upper range of thickness of cell wall in Gram-negative bacteria: 10 nm As of 2016, the 10 nanometre was the smallest semiconductor device fabrication node: 40 nm Extreme ultraviolet wavelength 50 nm Flying height of the head of a hard disk: 10 −7: 100 nm: 121.6 nm
17 hours ago · Schistosomiasis, also known as snail fever, bilharzia, and Katayama fever, [1] [2] [9] is a disease caused by parasitic flatworms called schistosomes. [5] The urinary tract or the intestines may be infected. [5] Symptoms include abdominal pain, diarrhea, bloody stool, or blood in the urine. [5] Those who have been infected for a long time may ...
17 hours ago · Theria. Marsupialia. Placentalia. A mammal (from Latin mamma 'breast') [1] is a vertebrate animal of the class Mammalia ( / məˈmeɪli.ə / ). Mammals are characterized by the presence of milk -producing mammary glands for feeding their young, a neocortex region of the brain, fur or hair, and three middle ear bones.
17 hours ago · Frequency. ~20% at some time [2] [4] Atopic dermatitis ( AD ), also known as atopic eczema, is a long-term type of inflammation of the skin ( dermatitis ). [2] It results in itchy, red, swollen, and cracked skin. [2] Clear fluid may come from the affected areas, which can thicken over time. [2] AD may also simply be called eczema, a term that ...
17 hours ago · Symbiotic bacteria on the exterior surface of the ants produce antibiotics that kill bacteria introduced into the nest that may harm the fungi. Navigation An ant trail. Foraging ants travel distances of up to 200 metres (700 ft) from their nest and scent trails allow them to find their way back even in the dark.
