The answer to this question is "fluid mosaic model". We are being asked the question above and the complete sentence is below:
The contemporary description of the membrane structure of a cell is commonly known as the FLUID MOSAIC MODEL.
The answer is surface runoff
1.) is runofff ...........
Biosphere, relatively thin life-supporting stratum of Earth's surface, extending from a few kilometres into the atmosphere to the deep-sea vents of the ocean.