You are a field biologist interested in demonstrating evolution in a population
ID: 206351 • Letter: Y
Question
You are a field biologist interested in demonstrating evolution in a population of crickets that you have studied for two years. During that time, the average mass of individuals (a quantitative trait) has increased (see the data graphed below in picture).
1. Present graphs of two other data sets you could collect that will convince others that the changes you have observed are the result of evolution by natural selection. Label axes and titles.
125 opservea change 100 75 à 75 2 25- 14 16 18 20 cricket mass (grams)Explanation / Answer
Representation of graph:
Population of cricket shows two different types of average mass which we can see in this above graph. Two peaks represent their mass change by means of natural selection and this shows directional selection because on the evolutionary point of view cricket mass change from one form (left) to another (right).
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