Honors and CP Evolution Practice

Carbon Dating If the graph shows the data for carbon decay, How old is the carbon at 50%? 0 years old 10,000 years old 20,000 years old 30,000 years old If the graph shows the data for carbon decay, How old is the carbon at 10%? 0 years old 10,000 years old 20,000 years old 30,000 years old If the half life of magnesium 48 is 20 hours then which of the following graphs displays this? Homologous and Analogous Comparative Evolution Homologous means if the organisms have the same structures they most likely came from a common ancestor. Color in the humerus of each organism red! What is similar in the examples seen above? Bone structure Wings Legs Length Fill in the blanks! Analogous structures have the same function, but different structure. An example of this would be a bat wing and a bird wing. This shows that these two organisms are most likely not related. The appendix is an example of a _ structure. Homologous Analogous Vestigial Fossil DNA Analysis and Cladograms You are an anthropologist who just found an unknown species fossil! Luckily you can extract the DNA and compare to see what species it is most related to! According to the DNA chart below, which species is the unknown species most related to? I II III IV How did you find the answer to the question above? Found the DNA with the most differences Found the DNA that was shorter Found the DNA with the least differences Found the DNA that was longer Making a cladogram Fill in on the table, indicate which traits that organism has by choosing yes or no Traits: cells legs 6 legs wings Worm yes no no no Spider yes yes no no Carpenter Ant yes yes yes no Fly yes yes yes yes Creating the Cladogram Place the traits on the lines and the organisms in the text boxes worm spider ant fly cells legs 6 legs wings Analyzing a cladogram What trait separates Lampreys from tuna on this cladogram? JawsWhat separates a salamander from a turtle? amniotic eggWhich organism is most related to the leopard? turtleWhat trait does the tuna and lamprey share? vertebral columnWhich organisms DNA differs MOST from the leopard? Lancelet Watch this Video to become a cladogram expert. If species I is a Snake, species II is a Tuatara, species III is a Lizard and species IV is a Bird, What is the unknown species most related to? Tuataras Lizards Snakes Birds Using the cladogram, Which are the closest related? Crocodiles and Snakes Birds and Lizards Crocodiles and Birds Birds and Snakes What did T. rex taste like? Go to the linkand click on student start to find out! Using the activity sort the characteristics into the correct group based on the information provided by clicking the words in the diagram. eukaryota animals, plants, fungi and protists are here has a cell with a nucleus and organelles can be single celled OR multicelled archaea microscopic and single celled - able to live in extreme environments can live in deep sea vents can live in salty or acidic waters where other organisms wouldn't survive Bacteria single celled organisms have been around for more than 3.5 billion years The tree of life 1. Draw and label where the common ancestor is located.2. Draw and label where we are located. What are two traits that Max inherited? widows peak from Angelie dimples from Frances Red hair from Edward Freckles from Julia True or False:Even though all life is related, resemblances fade over time, so those relationships are not always obvious. true false What is the best definition for lineage? a single line showing age a continuous line of descent a set of parallel lines In this activity you compared the history of a single family to the history of all life. What are some things that they have in common? Both have a point of common ancestry In both, descendants inherit features from previous ancestors In both, descendants more closely resemble their recent ancestors than their more distant ancestors. All of the above Reading a cladogram. Color code where each has their own history in red.Color code where they share history in blue.Color code where they shared a common ancestor in green.Indicate where the tuna and parrot's most recent common ancestor is in yellow.Make an arrow to show where the organisms all have shared history. Which is more closely related to caimans? hares parrots Which feature do humans, hares, caimans, and parrots share that the other three lineages did not inherit? bony skeleton hair amniotic egg Organizing our data Traits Shark Tuna Frog Human Hare Caiman Parrot T-Rex Vertebrae + + + + + + + + Bony Skeleton 0 + + + + + + + Four Limbs 0 0 + + + + + + Amniotic Egg 0 0 0 + + + + ? Hair 0 0 0 + + 0 0 ? Opening in front of Eye 0 0 0 0 0 + + + Based on the information in the heel, leg use, and fingers what did T.rex most likely taste like?