If plaque buildup reduces the radius of the artery by a factor of 2, the flow rate becomes 1/16th of the original.
Coronary heart disease results from a deposition of plaque in the blood vessels which transport blood to the heart. When the flow of blood to the heart is hampered or obstructed, the heart can be harmed due to a deficiency of oxygen.
Moreover, if a large section of plaque that is deposited gets displaced from an artery wall, it can get stick in other arteries in the body as well, including those present in the brain.
For convenience, an assumption can be made that the artery is cylindrical in shape with a radius of R. The flow rate of a viscous fluid (blood in this case) is determined by Poiseuille's Law, i.e. Q = (π/8) (ΔP/ηl)r4.
To learn more about Poiseuille's Law here
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Answer:
The answer is B.
Explanation:
If warmer temperatures last longer there will be no need for the white fur
The following describe the inheritance pattern of autosomal genetic disorders.
- For an autosomal dominant disorder to be expressed just one copy of the abnormal allele must be inherited.
- For an autosomal recessive disorder to be expressed, two copies of the abnormal allele must be inherited.
<h3>What is autosomal genetic disorder?</h3>
Autosomal disorders is a form.of genetic disorders which is as a result of mutations in genes on the autosomes or chromosomes. Each person have two copies of autosomal gene, one of the alleles are inherited from each parent. Autosomal dominant disorders occur when there is a mutation in one copy of the gene.
Therefore, The following describe the inheritance pattern of autosomal genetic disorders.
- For an autosomal dominant disorder to be expressed just one copy of the abnormal allele must be inherited.
- For an autosomal recessive disorder to be expressed, two copies of the abnormal allele must be inherited
Learn more about autosomal genetic disorder below.
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Answer:
The electron microscope
Explanation:
<em>Fimbriae are very tiny appendages of about 3 to 10 nm in diameter found on the surface of most Gram-negative and some Gram-positive bacterial cells. They are mostly utilized as a structure to adhere to one another, to other organisms, or any other surfaces.</em>
Fimbriae generally contain adhesins, a virulence factor that facilitates adhesion to surfaces and <u>due to their tiny size, they can only be viewed using the electron microscope</u> - the scanning electron microscope to be precise.
Answer:
A
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