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WorksheetsEvidence of Common Ancestry
Total questions: 15
Worksheet time: 7mins
Using the cladogram to the left, which organism(s) do not have jaws? (choose all that apply)
Lamprey
Which conditions are best for possible fossil formation? (Check all that apply)
slow burial in a sandy environment
quick burial in a sandy environment
An environment without oxygen
An area with a high rate of erosion
Which animal is most closely related to birds?
shark
Primate
rabbit
crocodile
Which animal is most distantly related to the bird?
shark
rabbit
primate
crocodile
All of the following are evidence of common ancestry, EXCEPT:
Anatomical
similarities
Comparative Embryology
Fossil Record
Analogous Structures
Molecular similarities
These limbs provide evidence of common ancestry and are examples of:
Limbs that serve the same function
Homologous structures
They cannot be used as evidence
Analogous Structures
Which organism is the best example of an index fossil?
A
B
C
D
What number is the common ancestor of C and E
1
2
3
4
The three species pictured do not share a common ancestor, yet have evolved to have a similar anatomy and life style. This is an example of ?
Homologous Structures
Divergent Evolution
Vestigial Organs
Convergent Evolution
punctuated equilibrium
All of the following describe divergent evolution, EXCEPT:
Organisms share a common ancestor
Organisms must live in similar environments
Organisms develop homologous structures
Some of the evolutionary changes occurring in whales include: (Check all that apply)
Formation of gills
Loss of hindlimbs
Increase in teeth size
Increase in body size
Nostrils moving to top of head
