Humans Come From A Guy Sperm It Goes Into The Females Egg
Answer:
multicellular; single celled organisms are often too tiny to be seen without a microscope
4. Gene Pool is not a mechanism, thus your answer!
Answer: The biological definition of Archaea is any of the unicellular microorganisms that is genetically distinct from bacteria and eukaryotes, and often inhabiting extreme environmental conditions.
Explanation: