Biology TEKS Correlations (7) Science concepts. The student knows the theory of biological evolution. The student is expected to: (B)illustrate the results of natural selection in speciation, diversity, phylogeny, adaptation, behavior, and extinction. 37. In the study of immunology, it has been discovered that each person has a unique immune system, even identical twins. This would be considered an adaptive advantage because it — A. B. C. D. 38. Most vertebrates have two or more types of cone cells to sense color in abundant light. They have a single type of rod cell to sense black and white in low-level light. Many lizards lack rod cells yet are mostly active at night. The most likely explanation for this adaptation is that lizards — A. B. C. D. 39. allows for the production of many different types of antibiotics and vaccines encourages the rapid mutations of bacteria and viruses inhibits the creation of vaccinations for viral infections increases the probability that some members of a species will survive a threat are active only at night prey on light colored insects originally were daytime creatures live in tropical areas The North American gray wolf is a placental mammal and the Tasmanian wolf was a marsupial. Despite being on different continents, they looked and behaved similarly. The most likely reason these two species occupy a similar niche is that they — A. B. C. D. experienced the same type of selection pressure are both carnivores were exposed to similar diseases and parasites are genetically identical Charles A. Dana Center Science TEKS Toolkit www.sciencetekstoolkit.org