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Home > All Images > 2003 > June > 17 Jun 2003

Images Dated 17th June 2003

Choose from 80 pictures in our Images Dated 17th June 2003 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.

Sundew carnivorous plant leaf, SEM Featured 17 Jun 2003 Image

Sundew carnivorous plant leaf, SEM

Sundew leaf. Coloured scanning electron micrograph (SEM) of the sticky stalks (red) on the leaf of a cape sundew (Drosera capensis), a carnivorous plant. The stalks are tipped with a secretion that acts as a glue, trapping any insect that lands on the plant. Once an insect is trapped, the leaf curls around it. Digestive enzymes are then secreted, which convert the insect into nutrients for the plant. This ability allows the sundew to live in nutrient-poor soils, such as those found in marshland. Magnification: x18 at 6x7cm size


Simulated space ice Featured 17 Jun 2003 Image

Simulated space ice

Simulated space ice. Light micrograph of vesicles (round structures) in ice formed under conditions simulating those in space. Mixtures of the common space molecules, such as water, ammonia and simple hydrocarbons, were frozen at low temperatures and then exposed to ultraviolet radiation to simulate sunlight. The vesicles, 10 micrometres wide, show membrane-like properties, a possible precursor to cellular life. Products from the experiments also included complex biological molecules. The results support the theories that the origin of Earth, and other life, involved space ices impacting planets and depositing organic materials. Photographed at NASA's Ames Research Center, California, USA


Aggravated mosquito bite on a patients skin Featured 17 Jun 2003 Image

Aggravated mosquito bite on a patients skin

Mosquito bite. Close-up of an aggravated mosquito bite on a patient's skin showing localised inflam- mation. The bite is a small raised and reddened area which is usually itchy. Mosquitoes are blood- drinking insects. Their saliva contains an anti- clotting agent. The inflammation seen here may be due to an allergic reaction to the mosquito's saliva, or because the area has been scratched. Mosquitoes may transmit diseases, acquiring infec- tious organisms from infected human or animal blood, and transferring them to another person during a later bite. Anopheles, Aedes and Culex are the main disease-transmitting mosquitoes, carrying malaria and yellow fever, amongst others

© Jane Shemilt/Science Photo Library