Дефиниција: overall repetitive or reflective pattern in the body of one individual of this taxon. eg: bilateral symmetry, rotational symmetry, radial symmetry
Дефиниција: muscular waves propelling an animal over a mucus layer overlaying the substrate; alternating regions of muscular contraction and expansion create traveling waves that shear the mucus, resulting in translation of the animal.
Дефиниција: 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.
Дефиниција: Relative to pinhole eyes, lens eyes have greatly improved resolution and image brightness. The lens converges incoming rays of light, thereby reducing the angle over which each photoreceptor receives light, and forming an image focused on the retina. Most lens eyes have "accommodation"; they can focus an image either by physically moving the lens toward or away from the retina or by using eye muscles to adjust the shape of the lens.
Средините во кои живеат многу видови на Tethydidae Rafinesque 1815. Изберете една средина за да го видите нејзиниот контролен список на видови Tethydidae Rafinesque 1815.
Живеалишта на Tethydidae Rafinesque 1815
Средините во кои живеат многу видови на Tethydidae Rafinesque 1815. Изберете една средина за да го видите нејзиниот контролен список на видови Tethydidae Rafinesque 1815.
