Biology

Biology

A natural science concerned with the study of life or living matter in all its forms and phenomena, especially in relation to their origin, growth, reproduction, structure, behaviour and evolution.

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Biology > Toxicology

societal risk

Biology; Toxicology

Total probability of harm to a human population including the probability of adverse effects to health of descendants and the probability of disruption resulting from loss of ...

population (in statistics)

Biology; Toxicology

Totality of related items under consideration. Note 1: A clearly defined part of a population is called a subpopulation. The term ‘population segment’ is sometimes used as a ...

tubular reabsorption

Biology; Toxicology

Transfer of solutes from the renal tubule lumen to the tubular epithelial cell and normally from there to the peritubular fluid.

summary sheet

Biology; Toxicology

Two-to-four page summary of a risk assessment.

pinocytosis

Biology; Toxicology

Type of endocytosis in which soluble materials are taken up by the cell and incorporated into vesicles for digestion.

prokaryote

Biology; Toxicology

Unicellular organism, characterized by the absence of a membrane-enclosed nucleus. Note: Prokaryotes include bacteria, blue-green algae and mycoplasmas.

unit risk

Biology; Toxicology

Upper-bound excess lifetime cancer risk estimated to result from continuous exposure to an agent at a concentration of 1 μg L-1 in water, or 1 μg m-3 in air. Note: The ...