Using lac operon in E. coli and albumin gene in humans, compare and contrast the regulatory mechanisms of gene expression at the transcriptional level in prokaryotes and eukaryotes. In humans, somatic cells contain identical genes with the identical genome sequence (assuming no mutations or chromosome abnormalities are introduced). Yet, the cells in the brain are structurally and functionally quite different from the cells in the skeletal muscle. The major reason for this is that the cells in different organs express different sets of genes, which is called differential gene expression. Discuss how the differential gene expression is possible when all somatic cells carry identical genes and genome.

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.

if the hares very faster than they are now, and thus the lynx's hunting success rate drops because it will be harder to catch them, the rate that will change will be the pray-rate. the pray-rate will change because more hares will be able to survive, thus more individuals for reproduction, so the end result will be increasing population of hares.

the predator-rate will remain pretty much the same because there will be more than enough pray, but the hunting success rate is stagnant.

the answer is d p: cell, q: organ, r: organ system, s: tissue