Overview
Question 1. Watch this video
Do you think we are living during the 6th mass extinction? Answer this question and in your answer, include your reasoning. It is perfectly ok to be undecided and choose the "I don't know" stance; however, you still need to discuss scientific reasons why you are undecided.
https://www.youtube.com/watch?v=AKbJqNhadqU
Questions 2. Create a phylogeny for jellybeans A through E and the ancestor using their characteristics (color and flavor) listed below. Include the "trait table" and "number of changes" matrix. Remember to make one column for each trait in the character table. For example, if a jelly bean tastes like coconut and milk, make one column for coconut and another column for milk.
A: white, tastes like cream soda
B: white, tastes like coconut
C: yellow, tastes like coconut and milk
D: orange, tastes like tangerine and milk
E: yellow, tastes like lemon
Ancestor jelly bean: orange, tastes like raspberries and milk
Question 3. Multiple choice question: Examine the figure below. Which of the following clade(s) is (are) consistently found in all phylogenies?
a. AF
b. CE
c. Neither AF nor CE
d. Both AF and CE.
Question 4. Multiple choice question: You visited an island on which you found many closely related species of mice that form unresolved clade during phylogenetic reconstruction. After further studying these species, you concluded that they evolved in the absence of geographical barriers. Which of these statements falsely represent this scenario?
a. this is an example of allopatric speciation
b. this is an example of sympatric speciation
c. this is an example of adaptive radiation
d. this is an example of either adaptive radiation or sympatric speciation but not allopatric speciation
Please do not plagiarize or use chat