1 Heredity: All living things have DNA and genetic information codes the structure and function of all cells. 2  Equilibrium: All living things must maintain homeostasis, a state of balanced equilibrium between the organism and its environment. 3  Evolution: This is the overall unifying concept of biology.
Bicolor crested geckos are generally patternless but with a slightly darker â sometimes lighter â color on their dorsal (top of head and back). Bi-color is usually seen in red, orange, olives and buckskins.Some bicolors have a hint of a pattern on the dorsal, but lack the cream of flame morphs (see below).hink of crested gecko morphs as dog breeds â when you breed dogs from two different breeds together, you do not have a 25% chance of getting a full Labrador or Pug and 50% chance of getting Labs that carry Pug genetics.
Geckos (Gekkonidae) are a group of lizards that include about 930 species. Among the more common species of geckos are the tokay gecko, crested gecko, gargoyle gecko, dwarf gecko, leopard gecko, mediterranean gecko, western banded gecko, and the New Caledonian gecko.ost geckos are nocturnal hunters that feed on insects, spiders and other small invertebrates. The tokay gecko is a large species whose diet includes heftier prey such as small lizards, birds and mammals.