Key terms & definitions

The living components of an ecosystem, such as plants, animals and microorganisms.

The living components of an ecosystem, such as plants, animals, fungi and bacteria.

The living parts of an ecosystem, including plants, animals and microorganisms.

A living factor that can affect organisms in an ecosystem, such as food availability, predators, pathogens or competition.

A living influence on organisms in a community, such as food availability, predators, pathogens or competitors.

A resource obtained from living organisms, such as plants, animals or fungi.

Support or cooperation involving both major US political parties: the Democrats and Republicans.

Walking on two legs.

Walking on two legs.

A mood disorder involving episodes of abnormally elevated mood, energy and activity, called mania or hypomania, and usually episodes of depression. There can be periods of normal mood between episodes.

A survey scale with opposing descriptions at its ends, used to score a characteristic or opinion.

A survey scale with opposing descriptions at its ends, such as unattractive and attractive.

A semiconductor component with base, collector and emitter terminals, in which a small base current controls a larger collector current.

A group of people born during the same period, whose progress through age groups can be followed over time.

The number of live births per 1,000 people in a population per year.

The number of births during a stated period relative to the population, commonly expressed as births per 1,000 people per year.

To divide a line segment or angle into two equal parts.

An honorary seat of double width, awarded as a mark of distinction.

A senior Church official responsible for overseeing churches and clergy in an area.

An ordained leader whom Catholics understand to be a successor of the apostles, normally responsible for a diocese.

The wars of 1639 and 1640 arising from Charles I’s attempts to impose his religious authority on Scotland.

A large grazing mammal of the Great Plains that supplied food, hides and other resources to Indigenous communities; often called buffalo in historical accounts.

The smallest unit of binary data, with a value of either 0 or 1.

The number of bits used to represent each sound sample.

A tactic of capturing limited objectives, securing the captured ground and then making further limited advances.

An image represented by a grid of pixels, with a stored value identifying each pixel’s colour.

A digital image made up of pixels arranged in rows and columns, with a colour represented for each pixel.

A sequence of binary digits used to represent data, such as the colours of successive pixels.

A unit of transmission rate meaning one bit transferred each second; abbreviated bps.

A thick crude oil fraction used as a surfacing material for roads and roofs.