What does mr n greww stand for?

Mr N Greww stands for:

M Living things must 'M'ove R Living things can 'R'eproduce

N Living things need 'N'utritionG Living things 'G'row as they get older R Living things 'R'espond to stimuli E Living things 'E'xchange gases with their environment W Living things produces 'W'aste W Living things need 'W'ater