Whale Phylogenetic Tree
Source 1
Think of this tree as a map that shows how different whales are sort of like distant cousins. The bottom of the tree is where the very old whale family started, and as you go up the tree, you see who came from whom. Where the branches split, it's like showing a spot where the whale families became different from each other a long time ago.
The numbers? They’re like important family events. For example, number 1 might be when some whales started to have really big bodies. Each number marks a change that happened, which made the whale families unique from each other. So, the closer the numbers are to the top, the more recent the change happened.
Explanation of phylogenetic tree
Source 2
Arnason et al. 2018.
Question 1
Based on the phylogenetic tree, which of the following whale species would be considered the most closely related to the Sei whale?
Question 2
The number 7 on the phylogenetic tree is placed at the branch point for Gray whales. What does this signify in evolutionary terms?
Question 3
If the Fin whale and the Humpback whale share a more recent common ancestor with each other than with the Minke whale, which of the following statements is true?
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