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Sticky secretion used variously for locomotion, lubication, or protection from foreign particles.
Industry:Biology
Bundle of contractile cells which allow animals to move. Muscles must act against a skeleton to effect movement.
Industry:Biology
Front opening of the digestive tract, into which food is taken for digestion. In flatworms, the mouth is the only opening into the digestive cavity, and is located on the "belly" of the worm.
Industry:Biology
The chemical processes within an organic body that supply the energy necessary for life. The rate of metabolic processes is sometimes used as a way to differentiate organisms. For example, mammals generally have a higher metabolism than reptiles and can thus sustain higher levels of activity for longer periods of time.
Industry:Biology
That part of the body at the "front" end, where the brain, mouth, and most sensory organs are located.
Industry:Biology
Fluid which circulates throughout the body of an animal, distributing nutrients, and often oxygen as well.
Industry:Biology
Region of the body furthest from the mouth. In insects, the third body region behind the head and thorax.
Industry:Biology
Apertura a la slitlike o porelike conecta la faringe de un Chordata con el exterior del cuerpo. Las hendiduras branquiales pueden contener las branquias y ser utilizadas para el intercambio de gases, como en la mayoría de los peces, pero también puede utilizarse para la alimentación del filtro o puede ser modificadas en los vertebrados terrestres.
Industry:Biology
