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Home > All Images > 1999 > February > 18 Feb 1999

Images Dated 18th February 1999

Choose from 8 pictures in our Images Dated 18th February 1999 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.

SEM of a dust mite Featured 18 Feb 1999 Image

SEM of a dust mite

Dust mite. Coloured scanning electron micrograph (SEM) of a dust mite (Dermatophagoides sp. ). Dust mites are tiny arachnids which live in houses and eat the shed flakes of human skin which comprise a large amount of house dust. They are related to spiders and scorpions. They are invisible due to their small size, but even the cleanest house harbours many thousands living in furniture and fabrics. The head of this mite is at lower left. Its rounded body has several touch-sensitive hairs projecting from it, which act in the same way as cats whiskers. Their dead bodies and excrement can cause asthma and allergic reactions to house- hold dust. Magnification: x170 at 6x7cm size