Genotypes and phenotypes

Phenotypes is:

The visible characteristics of an organism which occur as a result of its genes.

Genotypes is:

The alleles that an organism has for a particular characteristic, usually written as letters.

I copied that definition directly from my GCSE science textbook, I wouldn't change it because the definition should be accurate.

Stay safe and Merry Christmas! :)

cramming before a final is bad because it makes a student's stress level higher. students who embrace cramming to get through a final exam week find themselves struggling to perform consistently, once the brain adjusts to prolonged sleep deprivation.

i think the answer is

mass