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.
Do not force it under your leopard geckoâs eyelids and do not apply any pressure. Also, do not allow the tip of the saline bottle to touch your leopard geckoâs eye or lids. In some cases, leopard gecko eye problems can be caused by parasites.n some cases, leopard gecko eye problems occur as a result of trauma to the eye, from a scratch, bite or abrasion. Infection can occur on the leopard gecko eye or under the eyelids, as well, and, in some cases, a leopard gecko eye problem is indicative of a respiratory infection or other systemic infection.