Answer:
a. pepsin
Explanation:
it has a 1 to 2 level which is acidic because anything lower than 7 is acidic
Each cell expresses, or turns on, only a fraction of its genes. The rest of the genes are repressed, or turned off.
The turned on genes are then first transcribed into messenger RNA by the process of Transcription.
Then the mRNA is Translated into protein by the process called Translation.
This is how the specific genes are expressed.
I think it’s B I’m not for sure
Bowling ball,as there is more mass and the force of gravity