Beaked caecilians - Encyclopedia of Life

• URI: http://purl.obolibrary.org/obo/GO_0019953
• Definition: Capable of creating a new organism by combining the genetic material of two gametes, which may come from two parent organisms or from a single organism, in the case of self-fertilizing hermaphrodites.

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• URI: https://eol.org/schema/terms/corneal_eyes
• Definition: Because of the difference in refractive index between air and water (or corneal tissue), a curved cornea is an image-forming lens in its own right. Its focal length is determined by the radius of curvature of the cornea. Many corneal eyes (eg: in land vertebrates) also have lenses, but the lens is flattened and weakened compared with an aquatic lens; most of the refractive power is provided by the cornea. Corneal eyes cannot focus in aquatic habitat.
• Attribution: https://www.britannica.com/science/photoreception/Single-chambered-eyes#ref278820

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