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.
Leopard geckos are a terrestrial species that lack lamellae, which is the padding on the bottom of certain species that allows them the ability to climb vertical surfaces. Instead, leopard geckos are equipped with small sharp nails extending from the end of each digit.he Leopard Gecko Characteristics-Anatomy is what helps define this spectacular animal and helps set it apart from the other geckos.