Differentiation of cells is responsible for which feature of complex organisms? Without differentiation, complex organisms would not– A. require nutrients for growth.
B. be multicellular.
C. have specialized tissues.
D. respond to their environment.

I think it will be

b)be multicellular

Differentiation of cell is the process by which cell becomes spesialized in order to perform different functions))

the water is warmed up by the sun and then it evaporates into the atmosphere. the sunlight warms the water by its heat. water is then cooled down and condensation takes place. the water then finally returns back to the earth by the process of precipitation in the form of rain or ice.

explanation:

rising temperatures because when water vapor in the air is cooled, it condenses. it turns back into a liquid and attaches to dust particles in the air. these very small water droplets group together to form clouds