Give two examples of events that can cause physical separation of members of a population? This is the website from the worksheet that I'm working on, I don't know if the answer is in the article, but willing to give brainliest to the best

https://flexbooks. ck12.org/cbook/ck-12-middle-school- life-science-2.0/section/4.9/primar y/lesson/origin-of-species-ms-ls

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.

answer: b

coz red blood cells marrow and circulates the body for 120 days.