C. alive. The vaccine contains a live strain of varicella-zoster (chicken pox) virus which has been attenuated so that it will stimulates the immune system but does not cause any disease in healthy people.
First, a complete digestive system means that the digestive tract has a beginning or the oral end and the opposite end or the aboral end. This is found in more complex animals starting from roundworms (flatworms have an incomplete digestive tract). A closed circulatory system is found in animals more recent than mollusks. The presence of the coelom makes it more evolved than the flatworms.
Specifically, a small animal with a segmented body, short stiff appendages, and soft skin with the above characteristics point out to the phylum Annelida or annelids.
Answer:
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Upon reinfection, the memory cells will immediately differentiate into plasma cells and CTLs without input from APCs or TH cells.</em></u></h2>
Explanation:
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What is soft layer of earth that has convection currents and causes plates to move
Black hole
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