Biology

Bioaccumulation

Biochemical cascade

Biochemical cascade (signal transduction pathway)

Biochemistry

Biodegradation

Biodegradation: natural breakdown of materials by living organisms

Biodiversity

Biofilm

Biogeography

Biogeography: distribution of life, patterns, history and practical importance

Bioinformatics

Bioinformatics: computational analysis of biological data

Biological classification

Biological control

Biological half-life

Biological half-life: definition, factors, measurement and applications

Biological hazard

Biological pigment

Biological rhythms

Biological rhythms: cycles of life from circadian to annual

Biological species concept

Biologist

Biologist: scientists who study living organisms

Biology

Biology: the scientific study of life and living systems

Biology is the natural science that examines life, organisms, their structures, functions, origins, interactions, and evolution across scales from molecules to ecosystems.

Bioluminescence

Biomass

Biosemiotics

Biota

Biota: the living components of an environment

Biotechnology

Biotechnology: concepts, methods, and applications

Overview of biotechnology: use of living systems to create products, principal techniques, historical development, applications in agriculture, medicine and industry, and societal

Biotic

Biotic (living components of ecosystems)

Bioturbation

Bipedalism

Bipedalism: locomotion on two limbs in animals and humans

Bird flight

Birth

Birth (parturition): process, types, and cultural significance

Bivalve

Bivalve (Bivalvia): two‑valved molluscs — overview, anatomy, ecology, uses

Bivalves are aquatic molluscs with two hinged shells. This article summarizes their anatomy, feeding, habitats, reproduction, evolution, ecological roles and human uses.

Black bread mold

Black bread mold (Rhizopus stolonifer)

Black hair

Bladder

Blood

Blood: composition, function, circulation, and medical significance

An overview of blood as a circulating fluid tissue: its components, transport roles, clotting and immune functions, circulation, clinical importance and basic history.

Blood cell

Blood cell: types, functions, production and clinical importance

Blood plasma

Blood sugar

Blood sugar (blood glucose)

Blood vessel

Blood–brain barrier

Blubber

Body

Boletus

Bolus

Bolus: biological, medical and alimentary meanings

Bombycidae

Bombyliidae

Bone

Bone (vertebrate skeletal tissue)

A clear, concise overview of bone: its structure, development, functions (support, protection, blood formation), maintenance, and evolutionary and clinical notes.

Bone fracture

Bone marrow

Bone marrow: structure, function, and clinical significance

Borrelia

Borrelia: the spirochete genus behind Lyme disease and relapsing fever

Bowel obstruction

Bowel Obstruction (Intestinal Obstruction)