What chemical messenger can directly influence gene expression

Where would you most likely not find an alpine glacier? the himalayas the rockies the andes flat areas of antarctica

Atypical human cell is approximately 12.00 μm in diameter and enclosed by a membrane that is 5.000 nm thick. (a) what is the volume of the cell including the membrane? (b) what is the volume of the cell membrane? (c) what percent of the total volume does its membrane occupy? to simplify the calculations, model the cell as a sphere. enter your answers using four significant figures.

Sweating and breathing is an example of differentiation specialization maintaining homeostasis metabolism