Answer:
I'm pretty sure the answer is a Tundra.
Explanation:
It's the only biome that has snow out of every other answer choice. Snowy places are naturally cooler than humid ones.
it takes place in the eukaryotic and prokaryotic cells.
in eukaryotes cell, it occurs in the matrix of the mitochondrion.
as you consider this, to me the answer is matrix
Answer:

Cost : The expenditure incurred by a producer on the factor as well as non-factor inputs for a given amount of output of a commodity.