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<span><span>https://www.boundless.com</span>/.../evidence-of-evolution-498-11724</span><span>
</span><span><span>planetward.org/files/change_over_time</span>0001.pdf</span><span>
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There are three major types of blood vessels: the arteries, which carry the blood away from the heart; thecapillaries, which enable the actual exchange of water and chemicals between the blood and the tissues; and the veins, which carry blood from the capillaries back toward the heart.
Answer: Silent mutations occur when the change of a single DNA nucleotide within a protein-coding portion of a gene does not affect the sequence of amino acids that make up the gene's protein. ... And when the amino acids of a protein stay the same, researchers believed, so do its structure and function.
Diptheria is a serious infection mainly caused by a specific type of bacteria. This diseases is associated to different symptoms.
<h3>What is the causing agent?</h3>
This disease is caused by Corynebacterium diphtheriae, which is a specific type of bacteria. Moreover, this bacteria produces toxins and this is the cause of the symptoms.
<h3>How is it transmitted?</h3>
This can be transmitted through saliva droplets from one infected person to a healthy person. Usually, symptoms appear within 5 days after getting the bacteria.
<h3>What are the symptoms?</h3>
Although this disease has many symptoms, the most important ones are sore throat and gray lining on the throat and nearby areas.
<h3>How to prevent it or treat it?</h3>
Antibiotics and antitoxins are often used, but the best is to prevent it through vaccination.
Learn more about diphtheria in: brainly.com/question/13061650
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