Help me with these questions. Thanks Lab: Exploring Evolution in the Periwinkle
ID: 89411 • Letter: H
Question
Help me with these questions. Thanks
Lab: Exploring Evolution in the Periwinkle experiment needs a control In the space below, record your set-up for each your tanks: Expose your experimental tanks to three seasons of hunting. In the space below, describe the changes you observe in each of your snail populations (tanks 1-4). Do these results support your hypothesis? Explain. One Final Question: In Exercise 2, you examined the role of variance, inheritance, and selection. Use your results to explain the role of each of these in natural selection.Explanation / Answer
a.)
tank 1: shell is really thick with high population
tank 2: shell is little thick with no evolution of population
tank 3: shell is lightly thin compared to tank 1 and tank 2 but predation is noticed
tank 4: shell is very thin and selection is seen with evolution.
b.) the population is not same in 4tanks and evolution is noticed tanks 3 and 4 with incresaing number of population and the results doesnot support the hypothesis.
c.)
role of varience: the varience in natural selection is noticed with morphologically different population in different tanks
role of inheritance: inheritance is noticed with different number of populations in tanks of highest in tank 1 and tank 3, with lowest 6 in tank 2
role of selection : selection is noticed and population becomes constant after predation in tank 3
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