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1960s - A detailed step-by-step on the care and maintenance of public restrooms as told by two janitors.
CIRCA 1960s - 1966 - A detailed step-by-step on the care and maintenance of public restrooms as told by two janitors.
1960s - A detailed step-by-step on the care and maintenance of public restrooms as told by two janitors.
Larva of the water mite Hydrachnidia under a microscope, possibly the Arrenuridae family. Attaches to insects that come out of the water (dragonflies), drinks hemolymph from them
Larva of the red bug Heteroptera under a microscope. Possibly the family Pyrrhocoridae. There are predators, parasites, herbivores. Sample size about 2mm
water flea Daphnia pulex under a microscope, class Branchiopoda. It is red because the sample is taken from a eutrophic pond. Food for fish
Thysanoptera insect larva or nymph under a microscope. most species of thrips are considered pests of agricultural crops, feeding on plant sap, there are also predatory species.

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26838151
Vidéo Description

Numéro de la ressource de stock de type Vidéo : 26838151

1940s: A servicewoman covers a toilet seat with toilet paper to combat crab and body lice, in a bathroom, on a military base, in 1943.

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  • 0:31

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Rick RayRick Ray

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