Biology
Articles about living organisms, life processes and biological research.
Mosaic evolution
Mother
Mother: biological parent, caregiver, and social role
Motile
Motor system
Motor system (neurobiology)
Mouth
Mouthparts
Mouthparts: structures, types, and roles in animal feeding
Mucus
Mucus: composition, functions, and roles across animals and human health
Multicellular organism
Multicellular organism: structure, reproduction, and diversity
Multiple birth
Murinae
Murinae (Old World rats and mice)
Muscle
Muscle: structure, function, types, and biological importance
Mutant
Mutant: biological meaning, types, history, and cultural use
Mutation
Mutation: Causes, Types, Effects, and Role in Biology
An overview of genetic mutation: what it is, how mutations arise, major types, biological consequences, their role in evolution and medicine, and basic detection and repair concept
Mutualism
Mutualism: biological interactions in which both partners benefit
Mycelium
Mycelium: structure, ecology, and practical uses
Myco-heterotrophy
Myco-heterotrophy: Plants That Obtain Carbon from Fungi
Mycobacterium
Mycobacterium leprae
Mycobacterium leprae — the bacterium that causes leprosy
Mycology
Mycoplasma
Mycoplasma genitalium
Myelin
Myocyte
Myoglobin
Myosin
Myosin: the actin-based motor proteins of eukaryotic cells
Myxobacteria
Myxobolus cerebralis
Myxobolus cerebralis — parasite causing whirling disease in salmonids
Nail (anatomy)
Nasal bone
Natural killer cell
Natural killer cell (NK cell)
Natural killer T cell
Natural killer T cell (NKT cell)
Natural selection
Natural selection: the mechanism of adaptive evolution
Nautiloid
Nautiloid (Nautiloidea): chambered cephalopods and their fossil legacy
Neanderthal genome project
Neck (body part)
Neck (anatomy): structure, function, and clinical significance
Need
Need: essentials for living—biological and psychological requirements
Nematomorpha
Nematomorpha (horsehair worms)
Neoptera
Neoptera: the wing-folding insects
Neornithes
Neornithes: modern birds, diversity, and evolutionary significance
Neoteny
Neoteny: retention of juvenile traits through altered developmental timing
Neotominae
Nephron
Nephrozoa
Nephrozoa (Eubilateria): the major bilaterian clade of protostomes and deuterostomes
Nerve
Nerve (anatomy, function, and clinical significance)
Nerve cord
Nerve impulse
Nerve impulse (action potential)
A nerve impulse is a rapid electrical signal that travels along neurons, allowing the nervous system to transmit information. Covers mechanism, conduction, history, examples, and c
Nervous system
Nervous system: structure, function, development, and clinical importance