<span>A prokaryote is a unicellular organism that belongs to either the domain Bacteria or the domain Archaea. Therefore, unlike a eukaryote, the prokaryote lacks in a nucleus and other organelles. The first organisms that appeared about 3.5 billions years ago were prokaryotes. They developed primitive forms of photosynthesis without oxygen as a waste. The first photosynthesizing prokaryotes appeared about 2.7 billion years ago which led to the changes in Earth atmosphere and consequently organisms dependant on oxygen could arise.</span>
The answer is A.
b and c are opinionated and Star signs aren’t scientifically proven.
Answer:
can you be more specific about your problem
Your nervous system quickly responds to the threat and sends a signal to your brain which causes your muscles/ body to react.
HOPE THIS HELPS!
