1) What trait is shared by all organisms? a) hair b) bony skeleton c) vertebrae d) amniotic egg 2) Which organism does NOT have four limbs? a) frog b) caiman c) tuna d) hare 3) How many organisms on the chart hava hair? a) 1 b) 2 c) 4 d) 7 4) Which two organisms are more closely related? a) shark and caiman b) frog and human c) parrot and tuna d) human and hare 5) Which traits are shared by both frogs and parrots? a) 2 skull openings and vertebrae b) four limbs and hair c) four limbs and bony skeleton d) vertebrae and amniotic egg 6) Which organisms are least related? a) tuna and shark b) frog and human c) shark and caiman d) human and hare 7) Which trait does a parrot and human NOT share in common? a) hair b) amniotic egg c) four limbs d) bony skeleton 8) What is the purpose of a cladogram? a) to help determine the name of an unknown organism b) to show common traits across different organisms c) to show the evolutionary history of traits appearing in organisms d) to show a timeline of organisms appearing on this earth 9) Phylogenetic tress are built using traits or features known as a) Leaves b) Characteristics c) Similarities d) Commonness 10) True or False: Phylogenetic trees can change over time as new evidence is found a) True b) False

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