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Representatives of the Lemnaceae, the duckweed family, are well-adapted for use as bioindicators for testing soil and water for toxic substances. Their rapid multiplication and the simplicity of their anatomy are important advantages for this use.

The adult brown marmorated stink bug is a little over a half inch in length and about as wide. The shield-shaped back contains various shades of brown. Unique markings for this species include alternating light bands on the antennae. Macro of a Stink Bug. Macro of a Stink Bug.

$Wolfsnout Goby Luposicya lupus occurs in the Indo-West Pacific from Pinda in Mozambique to Indonesia, north to Japan and south/east to Tonga in a depth range from 0-15m, max. length 3.5cm. The species inhabits large sponges, usually on the underside of floppy or fan types that grow on shallow reef flats and down on slopes that are subject to moderate currents. \nThis specimen was encountered even a bit deeper than the usual max. depth at 17m. \nTriton Bay, Kaimana Regency, West Papua Province, Indonesia \n3°54'59.5859 S 134°6'6.4748 E at 17m depth$

The nematode Steinernema feltiae under the microscope, the species used as a biopesticide to infect fungus gnats in agriculture and gardening.

Small gray moth, native to coastal California. Found in areas with coastal live oaks.

Pearl Crescent butterfly resting on a grass stalk

Ectobius sylvestris Forest Cockroach Insect. Digitally Enhanced Photograph.

Tracheal mucosa lined by ciliated pseudostratified prismatic epithelium with goblet cells stained in purple as well as the elastic fibers located under the epithelium. Light microscope picture. Gabe’s technique.

Differential grasshopper (Melanoplus differentialis) on corn husk in afternoon sunlight, late summer/early fall. Though a native North American species, people call it a pest because it can greatly damage crops. Others admire its adaptability. Still others point out that it feeds birds and other wildlife when its numbers rise. Taken in a Connecticut cornfield.

Education of chlorella under the microscope in Lab.

A beautiful skipper butterfly, Two-barred flasher, in the jungle of Guatemala.

Green aphid isolated on white (around 3mm in length)

Microscopic close view of high vaginal swab Gram stain smear, 100x. diagnosis of Bacterial vaginosis (BV).

Microscopic photo of a thin section of calcareous tufa of Holocene age.

Coreus marginatus Dock Bug Insect. Digitally Enhanced Photograph.

Epidermis. Electron microscope micrograph showing a keratinocyte of spinous layer. The epithelial cell has a polygonal shape, central nucleus with nucleolus, cytoplasm full of keratin filament bundles, and numerous dark desmosomes crossing the intercellular spaces.

Photomicrograph of filamentous blue-green algae, Oscillatoria species. Each band along the stand is one cell. This filament is very short probably having recently parted from a longer one. Filaments are typically many times longer. This algae is mobile, it moves and twists through the water. San Francisco Bay, California, USA. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination. Note - motion blur of live specimen, very shallow depth of field, chromatic aberration and uneven focus are inherent in light microscopy.

Curry flowers growing in the garden in summer.

Closeup photo of three heads of flowering Verbascum or Mullein. Medicinal herb growing among grasses in the NSW countryside near Armidale

bug (Ceraleptus gracilicornis) on a green leaf in the garden.

Cross section leaf of plant under the light microscope view for botany education.

Aphis under light microscope with white background

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