Biology
Articles about living organisms, life processes and biological research.
Australian green tree frog
Australian green tree frog (Litoria caerulea)
Autonomic nervous system
Autonomic nervous system — control of internal organs and homeostasis
Autophagy
Autopoiesis
Autopoiesis: self-producing systems and biological self‑maintenance
Autotroph
Auxin
Auxin: Plant Growth Regulators and Their Roles in Development
Avery–MacLeod–McCarty experiment
Avery–MacLeod–McCarty experiment: identifying DNA as the transforming principle
Avialae
Axillary nerve
Axillary nerve (circumflex nerve)
Axon
Axon: structure, function, and biological significance
B cell
B cell (B lymphocyte)
B vitamins
B vitamins (B-complex): roles, types, sources and deficiency
Baby
Bacillales
Bacillales: an order of Gram-positive bacteria
Bacillus
Bacillus — rod-shaped, endospore-forming bacteria
Bacillus (shape)
Bacillus anthracis
Bacillus anthracis — the bacterium that causes anthrax
Bacillus subtilis
Bacteria
Bacteria: structure, diversity, and roles in the environment and human life
Bacterial conjugation
Bacterial conjugation: direct transfer of genetic material between cells
Bacterial microcompartment
Bacteriology
Bacteriology: study, methods, history and practical applications
Bacteriophage
Bacteriophage (phage): viruses that infect bacteria
Bacteroides
Bacteroidetes
Balancing selection
Baldness
Baldness (Alopecia): Causes, Types, History, and Management
Bartholin's gland
Bartholin's gland (greater vestibular gland)
Bartonella
Basal
Basal (phylogenetics): definition, use and common misunderstandings
Basal ganglia
Base pair
Base pair: definition, structure, and biological significance
A base pair is two complementary nucleotides bonded across the DNA (or RNA) double helix. This article explains pairing rules, chemistry, role in genomes, variants, and practical i
Basidiomycota
Basidium
Basophil
Basophil — rare granulocyte involved in allergy and parasite responses
Bedbug
Bedbug (Cimicidae): biology, behavior, detection and control
Beehive
Beehive: natural nests and man-made hives
Beekeeping
Beeswax
Beeswax: properties, history and common uses
Being
Benthos
Bergmann's rule
Biceps
Biceps (biceps brachii): anatomy, function and clinical notes
Bikont
Bikont — eukaryotes ancestrally bearing two flagella
Bile
Bile (gall): composition, function, and clinical notes
Binary fission
Binocular vision
Binocular vision: how two eyes create depth and a unified view
Binomial nomenclature
Binomial nomenclature: two-part scientific naming system for species