#Question id: 8294
#XL - S Microbiology
The common ancestors of birds and mammals were very early (stem) reptiles, which almost certainly possessed three-chambered hearts (two atria, one ventricle). Birds and mammals, however, are alike in having four-chambered hearts (two atria, two ventricles). The fourchambered hearts of birds and mammals are best described as ________.
#Question id: 8295
#XL - S Microbiology
Imagine that a phylogeny was developed for a group of mammals based on bone structure. Which of the following statements would be a reasonable prediction about a phylogeny for the same group of species based on similarities and differences in the structure of a particular enzyme?
#Question id: 8685
#XL - S Microbiology
Which of the following would be most useful in creating a phylogenetic tree of a taxon?
#Question id: 8685
#XL - T Zoology
Which of the following would be most useful in creating a phylogenetic tree of a taxon?
#Question id: 8687
#XL - S Microbiology
Your professor wants you to construct a phylogenetic tree of orchids. She gives you tissue from seven orchid species and one lily. What is the most likely reason she gave you the lily?
#Question id: 8687
#XL - T Zoology
Your professor wants you to construct a phylogenetic tree of orchids. She gives you tissue from seven orchid species and one lily. What is the most likely reason she gave you the lily?