Arrector Pili

Science / Biology / Arrector Pili: A muscle running from a hair follicle to the dermis. Contraction of the muscle causes the hair to rise perpendicular to the skin surface, forming goose pimples.

Epilithic

Science / Marine Biology / Epilithic: A term for organisms that live attached to rocks. Latin translation: epi = upon, lith = rock. This term is general to terrestrial and marine habitats, ie. Some lichens are epilithic. MORE

Arrector Pili

Science / Biology / Arrector Pili: A muscle running from a hair follicle to the dermis. Contraction of the muscle causes the hair to rise perpendicular to the skin surface, forming goose pimples. MORE

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