The grouping of organisms based on their common descent is called
Asked by maham237 @ in Biology viewed by 313 People
1.
The grouping of organisms based on their common descent is called (1 point)
traditional classification.
binomial nomenclature.
derived characters.
~~evolutionary classification.~~
2.
What kind of analysis focuses on the order in which derived characters appeared in organisms? (1 point)
cladistic analysis
traditional classification analysis
~~taxonomic analysis~~
anatomical analysis
3.
Which of the following is the correct explanation of a derived character? (1 point)
The presence of a backbbackbone.
The presence of four limbs is a derived character of snakes because the ancestors of modern snakes had limbs, even though modern snakes do not.
~~The presence of hair is a derived character of mammals because all mammals have hair and no animals other than mammals have it.~~
Retractable claws are a derived character of carnivors because some of the animals that are carnivores have retractable claws.
4.
Each node on a cladogram represents (1 point)
the last point at which two groups shared a common ancestor.
the point at which one or more species became extinct.
the most recent point at which a trait was lost in a certain clade.
~~the point at which two clades joined and became monophyletic.~~
5.
DNA evidence (1 point)
can solve evolutionary puzzles, such as how to classify organisms that look similar to one species but share peculiar behaviors with another.
is not as reliable as physical characteristics or behaviors when used to classify organisms and determine evolutionary relationships.
~~has not resulted in any changes to cladograms that were created using observable traits or behaviors. ~~
can be used to classify organisms that are very different from each other, but not organisms that have close evolutionary relationships.