The three types of symbiosis are... Mutualism: A relationship in which both species benefit. Commensalism: A relationship in which one species benefits and the other speci â¦ es is neither helped nor harmed.
Definition of goldfish. : a small usually golden-orange Asian cyprinid fish (Carassius auratus) often kept as an aquarium and pond fish.
Self-colored orange/red is the most common metallic-scale goldfish color. Because it is so ordinary, self-colored orange/red is less highly valued. The orange/red is produced by red pigment cells, called erythrophores, and yellow pigment cells, called xanthophores, in the scales and skin.