The bones that form the prominences of the cheeks as well as part of the lateral wall and floor of each orbit are the Zygomatic bones.
The zygomatic bone is proportionately small but structurally important. It is almost quadrangular in shape and it is characterized by three surfaces, five borders and two processes.
It conveys the pressure exerted on the zygomatic region towards three otherwise unconnected bones i.e. the maxilla, the frontal as well as the temporal bone.
The zygomatic bones also possess the system of canals for the branches of the zygomatic nerve. The zygomatic bone extends backward to join the zygomatic process of the temporal bone, making the zygomatic arch.
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Answer:
Thermal energy can be transferred by conduction, convection or radiation
Explanation:
Thermal energy is the energy that flows from one point to another due to temperature differences between the points. There are three ways by which thermal energy is transferred which are conduction, convection and radiation.
In conduction, thermal energy is transferred in solids usually metals due to their good heat conductivity. An example is seen in the use of metals for preparing meals. Heat (or thermal energy) is transferred from the fire to the metal to the food.
Convection occurs in fluids (liquids and gases). It usually occurs in a cyclic manner. For example in heating water, thermal energy is gained by water molecules closest to the heat source (at the base of the container) and become lighter causing them to rise to the top. The molecules at the top become denser and sink to the bottom whereby they gain energy and rise in a similar manner. This repeated phenomenon occurs in a cyclic form whereby there's displacement of colder and denser molecules by warmer and lighter molecules. Another example is the occurrence of sea and land breezes.
Radiation occurs without the need of any material medium unlike conduction and convection. In radiation, heat is directly transferred from one point to the other without being transferred by molecules. This is seen in how thermal energy from the sun reaches the earth. In other words, heat is transferred in a vacuum
When a cell is metabolically active it means there are a series of enzyme-catalysed reactions occuring in the cell (metabollic pathway) that determine the nutrients to be used for production of energy. The more metabolically active a cell is the more proteins its membrane contain while the less active a cell is the more fats its membrane contains.
Answer:When a ribosome happens to be making a protein with an ER signal sequence, ... The main cell type in the liver, the hepatocyte, is another cell with an abundant smooth ER. ... of all other proteins made by ribosomes bound to the rough ER membrane, ... are by far the most common oligosaccharides found on glycoproteins.
Explanation:
A cell replicating itself.
