The rock pocket mouse fur coat exists in two morphs or variations light and dark Even though natural selection has taken place to produce these different variations the underbelly of the pocket mouse has remained a light color in both varieties How would you explain why the underbelly on pocket ID: 512922
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Warm-Up 8/17/15
The rock pocket mouse fur coat exists in two morphs or variations, light and dark. Even though natural selection has taken place to produce these different variations, the underbelly of the pocket mouse has remained a light color in both varieties. How would you explain why the underbelly on pocket mouse with dark fur remains a light color?Slide2
Warm-Up 8/18/15
There are three different ways in which patterns of natural selection occur. They are known as Directional Selection, Stabilizing Selection, and Disruptive Selection.
Research: Using a laptop, find out the differences between the types of natural selection and complete the following.
1) For each pattern of natural selection, provide a brief explanation along with a graph depicting the selection.
2) Think back to the rock pocket mouse. Provide an argument as to which type of natural selection is occurring in the desert environment.Slide3
Warm-Up 8/20/15
Choose amongst these answer options to answer the following questions. Each option may be used once, more than once, or not at all.
Random selection
Directional selection
Stabilizing selection
Disruptive selection
Sexual selection
An African butterfly species exists in two strikingly different color patterns
Brightly colored peacocks mate more frequently than do drab peacocks
Most Swiss starlings produce four to five eggs in each clutch
Fossil evidence indicates that horses have gradually increased in size over geologic time.
The average birth weight of human babies is about 3kg.
A certain species of land snail exists as either a cream color or a solid brown color. Intermediate individuals are relatively rare.Slide4
Warm-Up 8/31/15
In the year 2500, five male space colonists and five female space colonists (all unrelated to each other) settle on an uninhabited Earthlike planet in the Andromeda galaxy. The colonists and their offspring randomly mate for generations. All ten of the original colonists had free earlobes, and two were heterozygous for that trait. The allele for free earlobes is dominant to the allele for attached earlobes.
Calculate the allele frequency of the founding population for the dominant and recessive allele.Slide5
Warm-Up 9/1/15
The following data table was produced by scientists studying the amount of carbon dioxide produced from different underwater plants at varying depths. Graph the data table using excel on a laptop.
Recreate the graph in your notebook and answer the following analysis questions:
At which depth does each plant produce the most bubbles?
Provide an evolutionary explanation as to why you think each plant has a different optimum depth.
Depth (meters)
Plant A: # Bubbles/Minute
Plant B: # Bubbles/Minute
2
29
21
5
36
27
10
45
40
16
32
50
25
20
34
30
10
20