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What is name for diffent forms of a gene?
The different forms of a gene are called alleles.
Are endocytosis and exocytosis forms of active or passive transport?
Endocytosis and exocytosis are forms of active transport.
Which bone forms the roof of the eye cavity?
The bone that forms the roof of the eye cavity is the frontal bone. It also forms the forehead and part of the top of the skull.
What muscle forms the lateral boundary of the femoral triangle?
The sartorius muscle forms the lateral boundary of the femoral triangle.
Are there different forms of PKU or phenylketonuria?
Yes, there are different forms of PKU, including classic PKU and variant forms like mild hyperphenylalaninemia. These forms vary in severity and in the effectiveness of the enzyme phenylalanine hydroxylase, which is responsible for breaking down phenylalanine. Treatment approaches may differ based on the specific form of PKU.
Very hard sedimentary rock that often forms inside limestone?
The hard sedimentary rock that often forms inside limestone is called chert. Chert is composed of microcrystalline quartz and can be found in nodules or layers within limestone deposits. It forms through the replacement of limestone by silica-rich solutions.
What kind of rock is white chert?
White chert is a microcrystalline sedimentary rock made up of silica. It forms in environments where silica-rich waters deposit material that solidifies into fine-grained, white-colored chert.
What is the structure of chert?
Chert is a microcrystalline or cryptocrystalline sedimentary rock composed of silica (primarily quartz). It often forms as nodules or layers within other rocks, such as limestone, and is known for its hardness and conchoidal fracture.
What sedimentary rock forms inside of limestone?
One possible answer is that chert can form inside of limestone. Chert is a microcrystalline sedimentary rock that forms from the accumulation of silica-rich remains of marine organisms, such as diatoms or radiolarians. Another possibility is travertine, which is a type of limestone that forms from the precipitation of calcium carbonate from water, typically in caves or hot springs.
What is a very hard sedimentary rock that often forms inside limestone?
A hard sedimentary rock that forms inside limestone is called chert. It is composed of microcrystalline quartz and often forms nodules or layers within limestone due to the replacement of calcium carbonate by silica-rich fluids.
What kind of a mineral is chert?
Chert is a hard, dense, sedimentary rock primarily composed of microcrystalline silica. It forms through the accumulation of silicon dioxide from dissolved quartz in water. Chert is commonly found in limestone formations and as nodules in other rocks.
How does jasper form?
Jasper is a form of chert with impurities and inclusions. For example, an Fe impurity will cause for the red-coloured Jasper, Cu will cause for blue, Ni for green, etc. Chert is an extremely hard, microcrystalline form of quartz. It is typically formed by the accumulation of silicious skeletons of marine creatures (e.g. diatoms and radiolarians; form in beds of chert) or by chemical replacement (i.e. migration of silica) of nodules in carbonates. Jasper is typically in association with the later, for if formation occurs as a nodule in an iron-rich dolostone, fluids that migrate the silica will also cause for the iron to relocate, causing the impurity upon precipitation.
Is chert a sedimentary rock?
Chalk is a form of limestone, a sedimentary rock.
What is flint's crystal shape?
Flint typically forms as small, irregularly shaped nodules or masses, rather than having a distinct crystal shape. Its microcrystalline structure gives it a smooth, often waxy appearance.
What kind of sedimentary rocks are crystalline limestone and chert classified as?
Crystalline limestone and chert are classified as biochemical sedimentary rocks. Crystalline limestone forms from the accumulation of calcite-rich remains of marine organisms, while chert forms from the silica-rich remains of marine organisms such as radiolarians or diatoms.
What is fiint?
Flint is a variety of chert. Pure chert is made of the compound Silica Dioxide, and it is usually formed via precipitation from sea water, or accumulation of Siliceous materials at the bottom of an ocean as residues of organisms with siliceous structures (shells) drop to the ocean bottom. The crystals of silica dioxide in chert are too small to be visible to the naked eye, as opposed to the large crystals of silica dioxide that make up the mineral quartz. Flint is an impure form of chert, and is believed to form a bit differently than most other cherts. Geologists believe it forms as nodules in limestone that are created as siliceous materials fill voids in the surrounding limestone, through a process called diageneses. In diagenesis, the various compounds in sedementary layers separate and combine and reform with other similar materials as the layer is compressed and metamorphosed.
What type of rocks did the Stone Age people use?
Stone Age people primarily used rocks such as flint, chert, obsidian, and granite to make tools, weapons, and other objects due to their hardness and ability to be shaped into desired forms. These rocks were easily accessible and could be crafted into sharp edges for cutting, scraping, and hunting.
