I’m pretty sure it’s b, the membrane, wich is the exterior layer of the cell!
I can answer it I just need to see the pictures! Message me when you upload them. It will be to do with the turgidity of the cell and the vacuole
The genetic code is said to be redundant in that the same amino acid residue can be encoded by multiple, so-called synonymous, codons
First convert 5 km into m so the units match up
That way you know the stream goes 5,000 m horizontally and 200 m vertically
Then I think you just do rise/run which would be 0.04 m