The humoral response is mediated by B lymphocytes<span>, which release antibodies specific to the infectious agent. The cell-mediated response involves the binding of cytotoxic </span>T lymphocytes<span> to foreign or infected cells, followed by the lysis of these cells.</span>
Oxygen... Hope this Warner helps
Answer:
Their primary way of spreading is from human activities, they can quickly travel around the world for example these new "murder" hornets that can kill a large bee hive with one sting, they traveled all the way from Asia. Invasive species can also be through people's luggage, small boats, planes and large shipment like cargo carriers. I hope this helps. : )
Explanation:
A micrometer is 100 times smaller than a millimeter.