At what level of organization is immunity executed?

System.

Explanation:

Immunity is organised into system levels of organisation because it comprises of different organ, proteins and cells.

The immunity.

The immune system comprises of networks of cells, proteins and organs that in fighting against any invading pathogens entering the body.

The comprises of white blood cells which function as defence mechanism.

The immune system identify any foreign pathogens and distinguish them from the normal body cells and organs then secrete antibodies to fight against it

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.

sodium i think the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group.