CH.26 Phylogeny and the Tree of Life Flashcards
1
Q
Fossil evidence indicates that some dinosaurs had feathers. If birds are indeed descended from dinosaurs, feathers are what kind of character?
A
Shared ancestral character
2
Q
systematists have used a wide variety of traits (characters) to reconstruct the phylogenies of particular groups of organisms. Which of the following types of characters are used to estimate a phylogeny?
A
Morphological characters and DNA sequence characters
3
Q
Animals that possess homologous structures probably
A
evolved from the same ancestor
4
Q
The genome of an organism
A
Includes all of the organism’s DNA
5
Q
Which of the following taxonomic categories contains all the others listed here?
A
Class
