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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 > Ecology

periphyton

Biology; Ecology

Tiny organisms like algae and diatoms that cling to the underwater roots of aquatic plants.

point bar

Biology; Ecology

A sedimentary deposit (normally sand) inside the bend of a channel. Tends to build outwards.

zoonotic diseases

Biology; Ecology

Diseases transmissible from animals to humans. Ebola, tuberculosis, and rabies are examples.

acclimation

Biology; Ecology

A reversible physical change in an adapting organism in response to environmental pressures.

brackish water

Biology; Ecology

Water contaminated by salt, but with a salinity lower than 35 parts per thousand. See Brine.

stream order

Biology; Ecology

A measure of stream size and branching, from first order streams (the largest) to twelfth.

molecule

Biology; Ecology

A group of atoms bonded together. Chemistry is the scientific study of molecular reactions.