Question 3 The fluid-mosaic model of the cell membrane suggests that the membrane is primarily composed of proteins and lipids. Which of the following is a function of proteins in the cell membrane?
Α
to allow substances to cross the plasma membrane via active transport
B
to provide a hydrophilic head so that water can enter the cell
С
to package and sort molecules to be sent in vesicles
D
to read messenger RNA to assemble amino acids

answer: national resource conservation services

national resource conservation services is the us. based approach that provides technical and financial assistance for natural resource management. nrcs society in conservation of resources by involving in activities like farmland protection, flood prevention, watershed protection, urban conservation, conserves economic and environmental conditions. it conducts soil surveys and implements the policy of natural resources management on the society.