• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

The Effect of Natural Selection on Dotted Mice. The purpose of this lab is to demonstrate the effect of natural selection on a population. In this lab, the Gooney birds predation of the colorful mice (symbolized by colored dots) was simulated to s

Extracts from this document...


The Effect of Natural Selection in Dotted Mice Objective: The purpose of this lab is to demonstrate the effect of natural selection on a population. Raw Data: Number of Colorful Mice TRIAL RED ORANGE YELLOW GREEN BLUE BLACK 1 10 10 10 10 10 10 2 12 15 3 18 12 0 3 21 6 3 21 9 0 4 21 0 3 30 6 0 5 33 0 0 21 6 0 1 33 0 0 21 6 0 2 30 0 0 21 9 0 3 33 0 0 18 9 0 4 27 0 0 15 18 0 5 18 0 0 21 21 0 Colors of Colored Mice Through Generations Population of Colorful Mice, Measured in Single mice. Graph: Strawberry Cloth Generations Generations Star Cloth Population of Colorful Mice, Measured in Single mice. Generations Conclusion: The purpose of this lab is to demonstrate the effect of natural selection on a population. ...read more.


The orange, yellow, and black mice populations have been completely eliminated. The final product leaves the green and blue mice with the same population, and the red mice population with three less than the green and blue. This time, the two dominant colors are blue and green, with red coming next. Their advantages in color gave them the best rate of survival in the star environment. The eliminated colors were unable to re-enter the environment after their eradication, this solidifies the theory that with natural selection, all species lacking the necessary traits to survive will not be permitted to reproduce and pass on weak traits. The dominating colors of the simulation in the end of the trials showed that over time and by natural selection, they were the colors that had the best rate of survival for the selected environment. Evaluation: An error that occurred during our lab was that during one of the trials, we ended up with a miscount and instead found that we had an extra mouse after the Gooney birds preyed on them. ...read more.


A limitation of the simulation is the fact that it is only a representation of a realistic living environment and cannot imitate the conditions of one. The simulation was limited in the environment, for it never changed throughout the entire experiment. Instead, an environment would at the least have subtle changes in the time period of five generations. Also, the ratio of Gooney birds to mice would not be consistent for five consecutive generations. The cumulative population of the mice at the end of the trial would always be 60 and there would always be four Gooney birds hunting. Population size would, in reality, vary between generations due to disease, natality rates, mortality rates, shortage or abundance of resources, overpopulation due to immigration, or emigration. The data is inconsistent due to this limitation, for the fact that the simulation does not take into account these factors, natural selection is unable to ensue. To improve this, the Gooney birds could get an allotted time to capture prey instead of having as much time as it would take to capture 10 mice. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our International Baccalaureate Biology section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related International Baccalaureate Biology essays

  1. Design Lab

    think that making people listen to it will remind them of this and get their heart pumping faster because they are getting excited about the music. The scientific reason as to why this would happen would be that our bodies associate this type of music with physical exercise, since this music normally comes hand-in-hand with physical activity.

  2. Biology Lab Report-Osmosis

    In such cases there is no concentration gradient, so there is no movement of water across the cell membrane. Therefore, there is no change in mass or size of the cell. In this case the solutions are said to be iso-osmotic.

  1. DNA Strawberry Extraction Lap

    Normally, it cannot be seen with the naked eye. It can only be seen when the cell is n prophase of mitosis, meaning that the DNA has folded itself to form chromatin. When the strawberry DNA is clumped together, our naked eye sees a white mass, but when looking at

  2. In this extended essay I am looking at the effect of different kind of ...

    is the one of the most important factors. All seeds need water for germination. Many mature seeds are very dry and need to rehydrate their cells. The intake of the water by seeds is described as imbibition, which leads to the swelling and the cracking of the seed coat.

  1. Pill Bug Lab

    not what they are accustom to and/ or if they find breathing too difficult, they will want to move to a more habitable area. Since their normal habitat consists of naturally saturated soil, they will most likely stay in the area that is most like naturally saturated soil-- the potting soil saturated with tap water.

  2. The effect of toliet cleaning products on E-coli ...

    The glass spreader will be coated in methylated spirits. Replications Controlled variables Each different substance shall be tested using the same body of e coli five times. To be conservative each substance shall occur once on each agar plate. In short five agar plates shall be used.

  1. Plant Tropism Lab

    (Day 1) March 4: No growth. (Day 2) March 5: Kentucky Wonder #2 sprouts. (Day 3) March 8: Golden Wax #2 explodes, Pencil Pod #2 and Stringless Green #1 begins to sprout. (Day 4) March 9: Kentucky Wonder #5 and Pencil Pod #1 begins to sprout. (Day 5)

  2. Free essay

    Photosynthesis Lab

    * Elodea plant (15 pieces of 11.3cm each) * Masking tape * Light and light bulb of 100 watt * Cellophane paper (15 pieces of 12.2 X 7.4cm each) Method (procedure): 1. I gathered all my apparatus 2. I then measured the test tubes and figured out home much cellophane paper I need in order to wrap each test tube (12.2 x 7.4 cm for each one)

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work