Answer:
Blood is not present in the urine of healthy person since the blood cells, platlets and plasma proteins are large enough to prevent their glomerular filtration. These components of blood are not present in the glomerular filtrate and hence, are absent in urine as well.
Explanation:
The first step in urine formation is glomerular filtration which filters the nitrogenous wastes and other compounds and forms glomerular filtrate. Glomerular filtrate undergoes tubular reabsorption and tubular secretion to form urine.
The components of blood such as blood cells, platelets, proteins of plasma are not added to the glomerular filtrate. They exit the glomerulus of nephrons via efferent arteriole. Since blood components are not filtered to become part of glomerular filtrate, blood is absent in the urine of a healthy person.
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.
To learn more about Zygomatic bones here
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Answer:
<em>The correct option is D) Cities can be built in otherwise uninhabitable places.</em>
Explanation:
The advances in technology for transporting water has now allowed us to inhabit lands in which previously life was not possible because of the lack of water. Nowadays, perfectly clean and sterilized water is available to any house hold at any place due to the effective technologies of transporting water. Cities can be built in places which were uninhabitable previously due to the lack of water resources.
Answer:
- The proteins in the chicken are broken down into amino acids, and the DNA in Amanda's cells uses those amino acids to build human proteins.
Explanation:
The body uses the protein taken by Amanda in the form of a chicken sandwich by breaking it down into the form of compounds called 'amino acids.' Amino acids are described as the substances that are responsible for the formation of proteins in the body. Thus, the DNA present in Amanda's body cells will use these amino acids to form human proteins. The longer chains of these amino acids help the body to ensure its proper structuring and functioning.
The seasons are caused as the Earth, tilted on its axis, travels in a loop around the Sun each year. Summer happens in the hemisphere tilted towards the Sun, and winter happens in the hemisphere tilted away from the Sun. ... The poles remain cool because they are never tilted in a direct path of sunlight.
