Title

Will a Slime Mold be able to Preferentially Maintain the Shortest Route of a Maze?

School Name

Heathwood Hall Episcopal School

Grade Level

9th Grade

Presentation Topic

Microbiology

Presentation Type

Non-Mentored

Abstract

The purpose of this experiment is to test the ability of the slime mold to find and maintain the shortest route in a maze. It was hypothesized that the slime molds are given multiple paths with food at the end of each correct path, then the slime molds will find and maintain the shortest route of the maze. The null hypothesis states the slime mold will find no difference between paths, and will have no distinction on the one it chooses to take. A pea-sized piece of slime mold was transferred into each of the mazes, in petri dishes with oats at the end, and placed in an incubator set at 22.2 degrees celsius (room temperature) for 4 to 5 days. The slime molds were checked on after that period of time to record their growth. The recorded data includes the molds that took the shorter path, an alternate path (longer or grew over entire maze), or did not display any growth towards the food source. The results were analyzed using a two-proportion z-test. The results show no significant diference in which path the slime molds choose to take.

Start Date

4-11-2015 1:45 PM

End Date

4-11-2015 2:00 PM

COinS
 
Apr 11th, 1:45 PM Apr 11th, 2:00 PM

Will a Slime Mold be able to Preferentially Maintain the Shortest Route of a Maze?

The purpose of this experiment is to test the ability of the slime mold to find and maintain the shortest route in a maze. It was hypothesized that the slime molds are given multiple paths with food at the end of each correct path, then the slime molds will find and maintain the shortest route of the maze. The null hypothesis states the slime mold will find no difference between paths, and will have no distinction on the one it chooses to take. A pea-sized piece of slime mold was transferred into each of the mazes, in petri dishes with oats at the end, and placed in an incubator set at 22.2 degrees celsius (room temperature) for 4 to 5 days. The slime molds were checked on after that period of time to record their growth. The recorded data includes the molds that took the shorter path, an alternate path (longer or grew over entire maze), or did not display any growth towards the food source. The results were analyzed using a two-proportion z-test. The results show no significant diference in which path the slime molds choose to take.