HabitatIn ecology, habitat refers to the array of resources, biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species' habitat can be seen as the physical manifestation of its ecological niche. Thus "habitat" is a species-specific term, fundamentally different from concepts such as environment or vegetation assemblages, for which the term "habitat-type" is more appropriate.
AnimalBiological kingdomAnimals are multicellular, eukaryoticorganisms belonging to the biologicalkingdomAnimalia (). Animals consume organic material, breathe oxygen, have muscle cells, can reproduce sexually, and grow from a hollow sphere of cells, the blastula, during embryonic development. With few exceptions, animals are able to move. Animals form a clade, meaning that they arose from a single common ancestor.
WaterNames Preferred IUPAC nameWaterSystematic IUPAC nameOxidane (not in common use)Other names Hydrogen oxideHydrogen hydroxide (H2O or HOH)Hydroxylic acidDihydrogen monoxide (DHMO) (parody name)Dihydrogen oxideHydric acidHydrohydroxic acidHydroxic acidHydroxoic acidHydrolμ-Oxidodihydrogenκ-Hydroxylhydrogen(0)AquaNeutral liquidOxygen dihydride (may be considered incorrect)Identifiers CAS Number7732-18-53D model (JSmol)Interactive imageBeilstein Reference3587155 ChEBICHEBI:15377ChEMBLChEMBL1098659ChemSpider937DrugBankDB09145ECHA InfoCard100.028.902EC Number231-791-2Gmelin Reference117 KEGGC00001PubChemCID962RTECS numberZC0110000UNII059QF0KO0RCompTox Dashboard(EPA)DTXSID6026296InChIInChI=1S/H2O/h1H2Key: XLYOFNOQVPJJNP-UHFFFAOYSA-NSMILESOProperties Chemical formulaH2OMolar mass18.015 g·mol Appearance Almost colorless or white crystalline solid, almost colorless liquid, with a hint of blue, colorless gas OdorOdorless DensityLiquid (1 atm, VSMOW):0.99984283(84) g/mL at 0 °C0.99997495(84) g/mL at 3.983035(670) °C (temperature of maximum density, often 4 °C)0.99704702(83) g/mL at 25 °C0.96188791(96) g/mL at 95 °CSolid:0.9167 g/mL at 0 °CMelting point0.00 °C (32.00 °F; 273.15 K) Boiling point99.98 °C (211.96 °F; 373.13 K) SolubilityPoorly soluble in haloalkanes, aliphatic and aromatic hydrocarbons, ethers.
Marine biologyMarine 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. A large proportion of all life on Earth lives in the ocean. The exact size of this "large proportion" is unknown, since many ocean species remain undiscovered.
Intertidal zoneThe intertidal zone, or foreshore, is the area above water level at low tide and underwater at high tide; in other words, it is the part of the littoral zone within the tidal range. This area can include several types of habitats with various species of life, such as sea stars, sea urchins, and many species of coral with regional differences in biodiversity. Sometimes it is referred to as the littoral zone or seashore, although those can be defined as a wider region.
CoastA coast (also called the coastline, shoreline, or seashore) is the land next to the sea or the line that forms the boundary between the land and the ocean or a lake. Coasts are influenced by the topography of the surrounding landscape and by aquatic erosion, such as that caused by waves. The geological composition of rock and soil dictates the type of shore that is created. Earth has about 620,000.0 km (385,250.1 mi) of coastline.
SalinitySalinity () is the saltiness or amount of salt dissolved in a body of water, called saline water (see also soil salinity). It is usually measured in g/L or g/kg (grams of salt per liter/kilogram of water; the latter is dimensionless and equal to ‰).
The Log from the Sea of CortezThe Log from the Sea of Cortez is an English-language book written by American author John Steinbeck and published in 1951. It details a six-week (March 11 – April 20) marine specimen-collecting boat expedition he made in 1940 at various sites in the Gulf of California (also known as the Sea of Cortez), with his friend, the marine biologistEd Ricketts.
GravityAttraction of masses and energyThe shapes of two massive galaxies in this image evolved under the effects of gravity.In physics, gravity (from Latin gravitas 'weight'), also known as gravitation or a gravitational interaction, is a fundamental interaction, which may be described as the force that draws material objects towards each other.
SeawaterSeawater, or sea water, is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5% (35 g/L, 35 ppt, 600 mM). This means that every kilogram (roughly one liter by volume) of seawater has approximately 35 grams (1.2 oz) of dissolved salts (predominantly sodium (Na+) and chloride (Cl−) ions).
John SteinbeckJohn Ernst Steinbeck ( ; February 27, 1902 – December 20, 1968) was an American writer and novelist. He won the 1962 Nobel Prize in Literature "for his realistic and imaginative writings, combining as they do sympathetic humor and keen social perception". He has been called "a giant of American letters". One of the most widely read authors of the 20th century, he was also an independent journalist and war correspondent during World War II and the Vietnam War.
TideChange in sea level due to gravitySimplified schematic of only the lunar portion of Earth's tides, showing (exaggerated) high tides at the sublunar point and its antipode for the hypothetical case of an ocean of constant depth without land, and on the assumption that Earth is not rotating; otherwise there is a lag angle.
Natural historyNatural history is a domain of inquiry involving organisms, including animals, fungi, and plants, in their natural environment, leaning more towards observational than experimental methods of study. A person who studies natural history is called a naturalist or natural historian. Natural history encompasses scientific research but is not limited to it.*As an Amazon Associate I earn from qualifying purchases.