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The opisthokonts (from Ancient Greek ὀπίσθιος (opísthios) 'rear, posterior', and κοντός (kontós) 'pole, i.e. flagellum') are a broad group of eukaryotes...

The hypothalamus (pl.: hypothalami; from Ancient Greek ὑπό (hupó) 'under', and θάλαμος (thálamos) 'chamber') is a small part of the brain that contains...

Plant reproductive morphology is the study of the physical form and structure (the morphology) of those parts of plants directly or indirectly concerned...

Streaking is a type of indecent exposure. Two men urinating in public, which is often perceived to be indecent exposure Indecent exposure is the deliberate...

Sexual abstinence or sexual restraint is the practice of refraining from some or all aspects of sexual activity for medical, psychological, legal, social...

Candy apples (or toffee apples in Commonwealth English) are whole apples covered in a sugar candy coating, with a stick inserted as a handle. These are...

The whooper swan (/ˈhuːpə(ɹ) swɒn/ "hooper swan"; Cygnus cygnus), also known as the common swan, is a large northern hemisphere swan. It is the Eurasian...

Forensic entomology is a field of forensic science that uses insects found on corpses to help solve criminal cases. This includes the study of insect types...

Handroanthus is a genus of flowering plants in the family Bignoniaceae. It consists of 30 species of trees, known in Latin America by the common names...

In cellular biology, paracrine signaling is a form of cell signaling, a type of cellular communication in which a cell produces a signal to induce changes...

The Canellaceae are a family of flowering plants in the order Canellales. The order includes only one other family, the Winteraceae. Canellaceae is native...

Anal masturbation is an autoerotic practice in which a person masturbates by sexually stimulating their own anus and rectum. Common methods of anal masturbation...

Transferrin receptor protein 1 (TfR1), also known as Cluster of Differentiation 71 (CD71), is a protein that in humans is encoded by the TFRC gene. TfR1...

The demoiselle crane (Grus virgo) is a species of crane found in central Eurosiberia, ranging from the Black Sea to Mongolia and Northeast China. There...

The pyramidal tracts include both the corticobulbar tract and the corticospinal tract. These are aggregations of efferent nerve fibers from the upper motor...

The following is a list of individual trees. Trees listed here are regarded as important or specific by their historical, national, locational, natural...

50S is the larger subunit of the 70S ribosome of prokaryotes, i.e. bacteria and archaea. It is the site of inhibition for antibiotics such as macrolides...

Jacobaea vulgaris, syn. Senecio jacobaea, is a very common wild flower in the family Asteraceae that is native to northern Eurasia, usually in dry, open...

A sex show is a form of live performance that features one or more performers engaging in some form of sexual activity on stage for the entertainment or...

Dwarfing is a process in which a breed of animals or cultivar of plants is changed to become significantly smaller than standard members of their species...