Answer:
The correct answer is "The "host range" for a virus is determined by the presence or absence of particular components on the surface of a host cell that are required for the virus to attach".
Explanation:
The missing option of this question is the one that is correct, which is "The "host range" for a virus is determined by the presence or absence of particular components on the surface of a host cell that are required for the virus to attach". A virus is able to infect by recognizing particular components that are present in the surface of the host cell. If this components are absent in the cell, the virus is not able to infect it. Therefore, the "host range" is determined by the presence or absence of this particular components.
Genus and species are the two levels of classification that <span>represents the name giraffes Camelopardalis. </span>
The chemical division process called mitosis is split into the following 6 steps, such that: interphase<span>, prophase, </span>metaphase<span>, anaphase, telophase, cytokinasis. The firts step of mitosis is characterized by the presence of one cell, but in the end of process there exists two identical cells.</span>
