Search results
Results from the WOW.Com Content Network
Cavernous hemangiomas located in the brain or spinal cord are referred to as cerebral cavernomas or more usually as cerebral cavernous malformations (CCMs), [13] [2] and can be found in the white matter, but often abut the cerebral cortex. When they contact the cortex, they can represent a potential seizure focus for the patient.
Marine sediment, or ocean sediment, or seafloor sediment, are deposits of insoluble particles that have accumulated on the seafloor.These particles either have their origins in soil and rocks and have been transported from the land to the sea, mainly by rivers but also by dust carried by wind and by the flow of glaciers into the sea, or they are biogenic deposits from marine organisms or from ...
The seabed (also known as the seafloor, sea floor, ocean floor, and ocean bottom) is the bottom of the ocean. All floors of the ocean are known as 'seabeds'. The structure of the seabed of the global ocean is governed by plate tectonics. Most of the ocean is very deep, where the seabed is known as the abyssal plain. Seafloor spreading creates ...
A millimeter-sized sea animal could hold clues to the evolution of the human nervous system. While placozoans are simple animals only as big as a grain of sand, the blobs have unique cells that ...
Bunodosoma cavernatum is native to the tropical and subtropical western Atlantic Ocean and the Caribbean Sea, its range extending from North Carolina to Texas, including Florida and the West Indies. It occurs in the lower part of the intertidal zone on rocks and jetties, and on other hard substrates underlying gravelly or sandy bottoms. [3]
Polymetallic nodules were discovered in 1868 in the Kara Sea, in the Arctic Ocean of Siberia. During the scientific expeditions of HMS Challenger (1872–1876), they were found to occur in most oceans of the world. [10] Their composition varies by location, and sizeable deposits have been found in the following areas: Penrhyn Basin within the ...
The zone can be recognized as a linear patch of debris toward the upper part of a beach running parallel to the water's edge. The location of the wrack zone varies geographically and temporally. It is found at a higher elevation during spring tides compared to neap tides. The size of a beach and its intertidal zone will influence the location ...
Archaeologists discovered a 4,000- to 5,000-year-old ceremonial temple within a sand dune in Peru. Tucked between the ruin’s walls, the excavation team located burial remains of three humans.