MISSION 1 — Training Trees
It's time to learn some tree basics and to get an overview for how the Build A Tree game works. Each level of the game tasks you with building a phylogenetic tree—a small piece of the overall tree of life. A phylogenetic tree is a model of evolutionary relationships.
Watch the video and answer questions 1–5 below.
| Keyboard Shortcut | Action |
|---|---|
| Space | Pause/Play video playback |
| Enter | Pause/Play video playback |
| m | Mute/Unmute video volume |
| Up and Down arrows | Increase and decrease volume by 10% |
| Right and Left arrows | Seek forward or backward by 5 seconds |
| 0-9 | Fast seek to x% of the video. |
| f | Enter or exit fullscreen. (Note: To exit fullscreen in flash press the Esc key. |
| c | Press c to toggle captions on or off |
1-3. Use the tree to the right to answer questions 1-3 by clicking the button below. Click on the tree to open the image in a new window so that you can view it while answering the quiz questions.
Use the submit button to enter this choice.
Use the next button to continue.
Select the finish button to finish the quiz.
4. Which traits do A and B share in the tree above? Which traits do B and C share?
5. There is more than one correct way to show relationships using a phylogenetic tree. Which of these trees shows the same exact relationships as the tree above?
