Answer:
False, major false. A galaxy is a small portion of the entire universe... it contains plants, stars, asteroids, moons are insignificant compared to it. Also, pretty much all moons are larger than planets so that wouldn't even make sense.
I believe true because the Precambrian is the first geologic time, going back 4600-570 years ago, meaning it should contain the earliest of things.
Answer:
I believe the answer is D for the top one
Adenine will always trancribe to Uracil
Thymine will always transcribe to Adenine
Cytosine will always transcribe to Guanine
Guanine will always trancribe to Cytosine
Answer is CUCAAUGAU