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Under a magnifier, a splash of seawater teems with microscopic life. Microscopic life undersea is diverse and still poorly understood, such as for the role of viruses in marine ecosystems. [13] Most marine viruses are bacteriophages, which are harmless to plants and animals, but are essential to the regulation of saltwater and freshwater ...
Marine life, sea life or ocean life is the collective ecological communities that encompass all aquatic animals, plants, algae, fungi, protists, single-celled microorganisms and associated viruses living in the saline water of marine habitats, either the sea water of marginal seas and oceans, or the brackish water of coastal wetlands, lagoons ...
Marine prokaryotes have been the dominant life form for most of Earth's history, perhaps because water protected them from ionizing radiation [8] The Earth is about 4.54 billion years old. [ 9 ] [ 10 ] [ 11 ] The earliest undisputed evidence of life on Earth dates from at least 3.5 billion years ago, [ 12 ] [ 13 ] during the Eoarchean Era after ...
Some modern authors prefer to exclude multicellular organisms from the traditional definition of a protist, restricting protists to unicellular organisms. [9] [10] This more constrained definition excludes all brown, the multicellular red and green algae, and, sometimes, slime molds (slime molds excluded when multicellularity is defined as ...
Marine biology is the scientific study of the biology of marine life, organisms that inhabit the sea.Given that in biology many phyla, families and genera have some species that live in the sea and others that live on land, marine biology classifies species based on the environment rather than on taxonomy.
Been fishing lately and seen a blob in the water? It could actually a colony of small animals. Here's what to know about the bryozoan in Ohio.
Phytoplankton are photosynthesizing microscopic protists and bacteria that inhabit the upper sunlit layer of marine and fresh water bodies of water on Earth. Paralleling plants on land, phytoplankton undertake primary production in water, [2] creating organic compounds from carbon dioxide dissolved in the water.
The 1.6-billion-year-old organisms are believed to have been the first predators on Earth.