different language backgrounds
different languages
different layers
different length scales
different lengths
different levels
different life stages
different lifestyles
different ligands
different light
different light conditions
different light environments
different light intensities
different light regimes
different light sources

different lineages
different lines
different lipid
different lithologies
different loading conditions
different loadings
different loads
different localities
different localization
different location
different locations
different loci
different magnitudes
different males
different malignancies
different management

different management options
different management practices
different management regimes
different management scenarios
different management strategies
different manifestations
different manner
different manufacturers
different markers
different market conditions
different markets
different mass spectrometers
different masses
different materials
different mathematical models
different matrices

different meanings
different means
different measurements
different measures
different mechanical properties
different mechanisms
different media
different mediators
different members
different mesh size
different metabolic pathways
different metabolites
different metal centres
different metal ions
different metals
different method

different methodological approaches
different methodologies
different methods
different methods used
different metrics
different microbes
different microenvironments
different microhabitats
different microorganisms
different microstructures
different minerals