Geologic Time Scale.Scientists decide when an era begins<span> and </span>ends<span>, due </span>to<span> mass extinction. ...</span>Scientists determine<span> when drastic changes </span>are<span> made by the fossil record, which shows earths past organisms that have become extinct.</span>
Answer:
<u>III → IV → II → I → V</u>
Explanation:
The first response would be binding of antigenic determinants from pathogen to the receptors on lymphocytes then lymphocytes would become active and they increase their quantity followed by secreting antibodies that will eventually destroy the pathogen. Memory cells will recognize this pathogen as foreign body and they will always remember it.
Answer:
Jean-Baptiste de Lamarck
Explanation:
His two principles were "use and disuse" and "inheritance of acquired characteristics." The latter is what the statement is referring to.
Iodine products that are used on human tissues as anti-infection agents are called antiseptic. The antiseptics are used and applied on a tissue in order to reduce the possibility of infection, sepsis, or putrefaction. They i<span>nclude hydrogen peroxide, rubbing alcohol, and iodine.
The most commonly usage is </span><span> cleaning the skin before an injection and cleaning wounds.</span>