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pipe covered in green algae floating in a body of water. The algae growth indicates the pipe has been submerged for some time. It's possible the pipe is part of a submerged structure or debris in the water
Hydrilla plants in water as seen from above,
Microscopic photo of a thin section of calcareous tufa of Holocene age.
A long stringy kelp, Desmarestia aculeata or \
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 flatworm,
Amazing Colorful Agate Crystal stone cross texture background.
The lake or river bloomed and small green algae and ooze multiplied in it. The concept of a natural disaster and the release of harmful substances into the water and ecosystem disturbance
a spring scene with cherry blossoms in bloom
Geirangerfjord near Hellesylt in Norway.  This is seaweed in the Fjord.
Aerial view Great Barrier Reef from sky out of air plane in Australia
Coral reef visible through the crystal clear ocean water.
Transmission electron microscope (TEM) micrograph showing dark melanin granules in a melanocyte (top center) and in several keratinocytes, which, unlike melanocytes, have bundles of keratin filaments
Aerial drone view of forest bordering marshlands.
Leiden leaf c.s. under microscope
blue mold close up background, macro photography
Bleached pocillopora on coral reef in Seychelles
Sea life  Orange  coral from scuba diver point of view
Micrograph of a moss leaf, Dicranum, with elongated cells, and an elongated midrib (costa) that may be the water conducting cells of the leaf, with polarization at 200x.
Aerial view of beautiful natural shapes and textures in lake. Taken via drone.
Poropuntius normani Smith, natural fish in a Nam-Song river, feed the fish
Aerial view of high mineral content wetland with dead moss.
Aerial view of loyster farm by Ardara, County Donegal - Ireland.
Taken directly from above by drone, abstract vertical view of a sea coastline lagoon composed by rocks and algae. The scenery was taken in Bali Indonesia.
Ranunculus aquatilis, common water-crowfoot, white water-crowfoot in the river Semois, Semoy, Sesbach, Ardennes, Wallonia
plant Pumpkin ovary under light mircoscope with white background
Blue-green algae View on a beautiful  lake in scandinavia in denmark
Modern abstract painting. Colorful flowing art painting. Geometric background.
Demodex parasite under skin dog take photo from microscope
Island in El Nido, Philippines, divided into two distinct areas. The upper portion showcases a tropical island characterized by cliffs adorned with lush tropical plants. The clear blue sky with fluffy clouds provides a picturesque backdrop. In the lower portion, an underwater shot reveals a vibrant coral reef teeming with diverse coral formations. The focus is on the intricate beauty of the corals, creating a captivating underwater scene.
Free Images: "bestof:Cenozoic-Planktonic-Marine-Diatom-Diversity-and-Correlation-to-Climate-Change-pone.0084857.g010.jpg en Solid red line - fraction living species; dashed blue"
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