1. CAUG 2. UUAGGC 3. ACAUCG 4. CGAACAU
It might be because making it a hybrid could help get nutrition and other things it needs. I don't know exactly though
Since this is movement that is occurring against the natural movement from high to low concentration, this is Active transport.
The option C.
Probably a hinge joint or a tendon.
At least 12 million years ago?