BIOL 1110 Lecture Notes - Lecture 2: Homeostasis, Allele, Red Queen Hypothesis
Document Summary
Life maintains a variable level of internal constancy. A steady state of physiological condition of the body. Vasodilation- increase of blood flow at the body surface. Gooseflesh - erection of body hair (piloerection) Vasoconstriction- decrease of blood flow at the body surface. There are going to be two categories that relate to the maintenance of constancy. Resistors: conformers: little or no energetic investment in homeostasis. Limitations: energetic issues can cause growth and reproductive limits. Species like fish are going to be resistors (ph salinity) and conformers (tb) * (4). Life reproduces, grows and develops itself. (a) generational consistency. Central dogma (dna - rna - ribosomes - proteins ) (b) sexual rep. The evolutionary driver of sexual reproduction must have been very powerful and we can"t just clone because it is pretty much production of similar genetic copies which will no longer be capable of adapting to the changing environment.
