Norman grew skin in a lab by adding skin cells to a synthetic material. The skin functioned normally for 12 days. Then Norman separated some of the skin cells into cell membranes, cytoplasm, and vacuoles to study them. Which of the following were alive during Norman's experiment?
o the skin and the cytoplasm
o the skin and the skin cells
o the cell membranes and the skin cells
O the cell membranes and the cytoplasm

D:the cell membranes and cytoplasm

Explanation:

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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.