Name: ___________________________ __________________________________________________________________________________________ Understanding Phylogenies Laboratory Worksheet – BIOL 102 Instructions: Work by yourself or in a group to complete the Understanding Phylogenies in-class lab activity. Take notes & answer the questions on this worksheet. Grading: You will need to download this worksheet and do one of the above: 1) Use Adobe Acrobat or equivalent to edit, and then re-upload the completed sheet to the D2L dropbox or 2) Print out and complete by hand, then take a photo (you can use your phone) of the completed, last page of this worksheet, and submit that photo on D2L (15 pts). You will also need to answer quiz questions on D2L about content and topics covered in this lab (10 pts). Both are due by Friday as usual. 1. Go to the NOVA LABS Evolution Lab game. It can be found here: https://www.pbs.org/wgbh/nova/labs/lab/evolution/ 2. Click “Play Game” & login. You can login with Facebook, your Google account, by creating a PBS sign in, or via a Guest Pass. The Guest Pass might be easiest, but it is up to you. 3. After logging in, you should see The Evolution Lab page. Towards the bottom right you’ll see “Mission 1 Training Trees.” This is our activity for the day. Click “Play.” 4. Watch the short, 2 – 3 minute video introducing the activity, located in the upper left corner of your screen. You can turn on Closed Captioning for the video by clicking the CC option in the video window. Then answer the following questions: An evolutionary phylogenetic tree is a hypothesis (i.e., a testable idea in science) the depicts or describes: _____________________________________________________________________ _____________________________________________________________________________. What do “split points,” also called nodes, in a phylogenetic tree represent? : ______________________________________________________________________________ ______________________________________________________________________________ 5. Training Tree 1: Red, green, & gecko. Click “Play.” Follow the instructions on the screen to build your first phylogenetic tree. Remember: learn about each species you’re working with by clicking the magnifying glass. Magnifying glasses will pop up next to each of your species listed along the bottom (in this case, a gecko & a palm tree). Click these to learn about each species. Pay close attention to the traits listed at the top of each species’ profile. Not sure what a trait is? Ask us! Or ask Google. Once you’ve correctly built your tree, answer the question on the screen & on the next page. After answering the question on the screen, click “Next” to move on to the second tree. 6. Training Tree 2: Familiar faces. • Click “Play.” Follow the same steps as you did in the first tree activity. • Draw your final tree, including both species & traits, in the space provided on the next page. • Answer the question on the screen & on the next page. 7. Training Tree 3: Tree of life: Vegetarian edition. • Click “Play.” Follow the same steps as you did in the first tree activity. • Answer the question on the screen & on the next page. 8. Take a picture of the next page and submit it on D2L for 15 pts. Don’t forget to complete the associated quiz questions, also by Friday at 11:59 pm (remaining 10 pts). Name: ___________________________ _________________________________________________________________________________________ Understanding Phylogenies Laboratory Worksheet – BIOL 102 Training Tree 1: Red, green, & gecko. 1. Is an animal or a plant more closely related to a fungus? _________________________ 2. Which trait or traits below do geckos share with palm trees? Write your choice(s) here: ____________ A. Both are heterotrophic. B. Both are photosynthetic autotrophs. C. Both have cells with nuclei. Training Tree 2: Familiar faces. Draw your final tree in the space below. Make sure to include each of the species used & indicate where each trait occurs on the tree. 1. What trait used in this exercise do goldfish, kingsnakes, dogs, & stick insects all have in common? _________________________________ 2. Which of the organisms used in this tree is not a vertebrate? ________________________ Training Tree 3: Tree of Life: Vegetarian edition. 1. Is a banana more closely related to a lemon or an onion? _________________________ 2. Bananas & onions form a group to which the closest living relative(s) are/is: ____________ A. The radish & the lemon B. The seaweed *** IMPORTANT: Take a clear picture of this page & submit it to the appropriate assignment on D2L.
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