WorksheetsCladograms and Evolutionary Trees
Total questions: 25
Worksheet time: 25mins
Which orgainsms have hair?
Sharks & Ray Finned Fish
Primates, Rabbits & Rodents
Birds & Crocodiles
Rabbits & Birds
Genetic diversity among organisms of the same species causes...
Variation
Adaptation
Behavior
Environment
Which species is most closely related to species C?
A
B
D
What do pigeons have in common with lizards?
Mammary glands
Claws
Feathers
Fur
Consider the evolutionary tree. Which is the best description of the two organisms highlighted in pink?
They are separated by two nodes.
They share a recent common ancestor.
They belong to the same species.
They are ancestors of each other.
The term for the formation of new and distinct species is...
speciation
biological species concept
reproductive barrier
natural selection
What is a species?
A group of organisms that can mate with each other and produce fertile offspring.
A group of organisms that can mate and produce infertile offspring
A group of organisms that genetically are very different from each other.
Which are causes of speciation? Choose all that apply
Isolation caused by mountains, rivers and man-made structures
change in timing of mating
change in environment
different mating behaviors
Which animals have amniotic eggs?
Turtle and Tuna
Turtle and Leopard
Lancelet and Lamprey
Which species is most closely related to species B?
A
C
D
Which species is most closely related to species F?
A
B
C
D
E
Which species is most closely related to E?
A
B
C
D
F
Which cladogram best fits the data table?
According to the diagram, what is the common ancestor of ALL organisms on the evolutionary tree?
B
C
D
E
Using the cladogram, which characteristics do Lynx and Lizards have in common (check all the boxes that apply).
Jaws
Lungs
Amniotic Membrane
Hair
What number is the common ancestor of C and D
1
2
3
4
What is the common ancestor of Letters A, B, C, D, E?
1
2
3
4
Which group of animals on this tree are most closely related to birds?
Saurischian dinosaurs
Ornithischian dinosaurs
Crocodiles
None of these are related to birds
