<span>D) Vaccines allow for building immunity without harmful exposure because not all viruses are safe to be exposed to.</span>
Everything in Earth's system can be placed into one of four major subsystems: land, water, living things, or air. These four subsystems are called “spheres.” Specifically, they are the lithosphere (land), hydrosphere (water), biosphere (living things), and atmosphere (air)...
I hope this helps you with biology...
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it is trapped beneath non porous rocks
Answer:
<h2>
<em>Reed–Sternberg cell</em></h2>
Explanation:
As the diagnosis of Hodgkin lymphoma is sometimes confirmed by the presence of a type of cell called a <em><u>Reed-Sternberg cell.</u></em>
Punnett square predicts the percentage of offspring
