What is found in both viruses and in living single celled organisms such as protozoans and bacteria

Explain how fossils scientists make discoveries about the lives of organisms and about how environments have changed over time. plz hurry up it time

Which of the following is an eon in the time scale? phanerozoic proterozoic archean all of the above

Hey everybody i need with a biology question. all the gametes of isogamous organisms are genetically identical. true false