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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 is brown chert?
Brown chert is a type of sedimentary rock primarily composed of microcrystalline quartz, known for its brown coloration due to iron oxide or organic material inclusions. It often forms in shallow marine environments and can be found in various geological settings. Brown chert is commonly used as a raw material for tools and artifacts in prehistoric cultures due to its hardness and ability to be flaked. Its unique appearance and composition make it an interesting subject for both geological study and archaeological analysis.
Is flint foliated?
Flint is not considered foliated; it is a type of sedimentary rock primarily composed of microcrystalline quartz and does not exhibit the layering or banding characteristic of foliated rocks. Foliated rocks, like schist or slate, form under high pressure and temperature, leading to the alignment of minerals. Flint typically forms in chalk or limestone environments and is known for its conchoidal fracture rather than any layered structure.
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.
