Evolutionary Relationships Answers

Which describes the modern classification system?

Dr. Digger, a paleontologist, finds a fossil that he describes in his journal.The creature was approximately 1 meter long, with its backbone fused into a large shell covering the body cavity. It had a beaklike mouth, without teeth, and all four limbs were in the form of flippers.Based on anatomical similarities, to which modern animal is Dr. Digger’s creature most closely related?

A scientist discovers a new organism that is related to clownfish. What can the scientist discover by using molecular clocks?

Which of the following are Phylogenetic trees also know as ?

If two organisms are in the same clade, what can you predict about their relationship?

Consider the cladogram.Which group of organisms has the derived characteristics of true tissues, bilateral symmetry, and a pseudocoelom?

Consider the cladogram.According to the cladogram, which organisms have roundworms as a common ancestor?

According to the cladogram, which organisms are in the smallest clade with birds?

Julia is trying to place a duckbilled platypus, lizard, bear, and monkey on a phylogenetic tree. She learns that the duckbilled platypus, bear, and monkey are classified as mammals. She also learns that mammals share a common ancestor with reptiles. Which additional piece of information will be most helpful to Julia to properly build her phylogenetic tree?

Which best describes traditional classification?