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the finely branched threads of a mould fungus.
a state in which the body temperature has dropped to dangerously low levels.
a small, circular opening in the exoskeleton of insects that allows air to enter the insect's...
(also called heterotrophic organisms) organisms that are not able to produce their own organic...
invisible, short-wave radiation emitted by the sun, which can cause cancer in humans.
the layer of fatty material that is usually only surrounds the axon of a neuron. It is made from...