Answer:
Explanation
the two basic difference between RNA and DNA are
RNA is single stranded while DNA is double stranded
RNA contain uracil and DNA contain thymine
Answer:
The answer should be B
Explanation:
The nucleus has the genetic code to make protein.
I think the answer is Traction
An eon is 1.05 billion years and an era is 350 million years
Answer:
true
Explanation:
the condenser lens is the size of the electron beam and the main objective lens is to focus the beam on the sample
so that scanning electron microscope have two projector lens
sorry if its not correct