This hands-on laboratory exercise is a highly simplified model that attempts to simulate evolution by means of natural selection. Predators will act as agents of selection on their prey, a species whose members vary in color. We will assume that color is an inherited trait. Small squares of paper will represent the prey, which will be spread out of a piece of printed colored fabric that will serve as the habitat. The predators (you) will prey upon the population, with the surviving members reproducing and passing along the genes for color.<\/p>\n
Problem:<\/p>\n
How does a population change as a result of natural selection?<\/p>\n
Materials:<\/p>\n
Procedure:<\/p>\n
Data and Observations:<\/p>\n
Create a data table containing a tally of the number of each color of prey in each generation:<\/p>\n
Color<\/th>\n | 1._________<\/th>\n | 2._________<\/th>\n | 3._________<\/th>\n | 4._________<\/th>\n | 5._________<\/th>\n<\/tr>\n |
---|---|---|---|---|---|
Generation 0<\/td>\n | 20<\/td>\n | 20<\/td>\n | 20<\/td>\n | 20<\/td>\n | 20<\/td>\n<\/tr>\n |
Generation 1<\/td>\n | <\/td>\n | <\/td>\n | <\/td>\n | <\/td>\n | <\/td>\n<\/tr>\n |
Generation 2<\/td>\n | <\/td>\n | <\/td>\n | <\/td>\n | <\/td>\n | <\/td>\n<\/tr>\n |
Generation 3<\/td>\n | <\/td>\n | <\/td>\n | <\/td>\n | <\/td>\n | <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Record any observations.<\/p>\n Data Analysis: <\/p>\n Create a graph that tracks the changes in the prey population\u2019s colors.<\/p>\n Conclusion:<\/p>\n Be sure to answer the following reflection questions in the conclusion of your lab report:<\/p>\n Reflection questions need to be answered using complete sentences<\/u>. Some questions may require a longer explanation in paragraph form<\/u>.<\/p>\n Natural Selection Lab This hands-on laboratory exercise is a highly simplified model that attempts to simulate evolution by means of natural selection. Predators will act as [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"yoast_head":"\n |