Cladograms

Which organism's DNA will differ the most from the bird?

• Rodents

• Raufinned fish

• Sharks

• Amphibians

Which location on the phylogenic tree identifies characteristics shared by species B,C,D,E,F

• Location 1

• Location 2

• Location 3

• Location 4

Which trait do only humans have, according to the cladogram? (a)  

• jaws
• mammary glands & hair
• terrestrial during all life stages
• opposable thumbs

What is the closest relative of humans shown in this diagram?

• horse

• turtle

• monkey

• dog

Answer explanation

The the lines for human and monkey meet at a "V", which indicates their common ancestor.

Which two living organisms are most closely related?

• A and B

• B and C

• C and D

• B and D

• A and D

Answer explanation

B and C share the most recent common ancestor, F.

Which species are extinct? (Check all that apply)

• Asian elephant

• Mammoth

• Mastadon

• Stellar's sea cow

• Dugong

Answer explanation

Mammonth, mastadon, and Stellar's sea cow do not continue to present time.

The system of classification for organisms is called -

• taxonomy

• evolution

• terraformy

• cladogram

According to this data, the unknown bacterial species is most closely related to: 

• Species I
• Species II
• Species III
• Species IV

Which species has gone extinct?

• A

• B

• C

• D

• E

According to the diagram, what is the common ancestor of ALL organisms on the phylogenetic tree?

• B

• C

• D

• E