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Any living creature of the Kingdom Animalia constituting multi-celled organisms as well as single-celled organisms lacking chlorophyll and having the ability for spontaneous movement, such as protozoans.

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Animals > Spiders


Animals; Spiders

A hard, often shiny, sclerotized plate on the abdomen of some spiders.


Animals; Spiders

A partition separating two cavities or parts.


Animals; Spiders


sexual dimorphism

Animals; Spiders

A difference in form, color, size, etc., between sexes of the same species.


Animals; Spiders

An impressed, sclerotized spot, often reddish-brown. Often present on the dorsal surface of the abdomen and marking points of internal muscle attachments.

slit organ

Animals; Spiders

A stress receptor in the exoskeleton

sperm induction

Animals; Spiders

The process of transferring the spermatozoa from the genital orifice beneath the base of the abdomen into the receptacle in the male palpus.