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WorksheetsPhylogenetic Trees
Total questions: 28
Worksheet time: 16mins
According to this image, which two domains of life are most related?
Bacteria & Archaea
Archaea & Eukarya
Eukarya & Bacteria
According to this phylogenetic tree, which organism is the outgroup?
Mouse
Frog
Salamander
Fish
Human
What do you call the traits shown on phylogenetic trees, such as "four limbs" or "vertebrae"?
Derived characteristics
Speedy Lambofeeties
Branching elements
Harmonious changes
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
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
Who is the closest relative to the brown bear?
Giant panda
Dog
Lesser panda
Sun bear
Which organism is the most distantly related to all the others?
Raccoon
Dog
Giant Panda
Sun Bear
Who is most closely related to Taxidea taxus?
Lutra lutra
Panthera pardus
Canis latrans
Canis lupus
Which of these animals does not have/produce an amniotic egg?
Turtle
Leopard
Lamprey
All three of these animals produce the amniotic egg
According to this tree, which of these animal phyla are most closely related?
Arthropoda & Mollusca
Arthropoda & Chordata
Chordata & Mollusca
The diagram shows a cladogram of six species based on amino acid similarities. Which two species are MOST CLOSELY related.
I and II
II and IV
I and V
V and VI
Which point is where the sponge and mushroom diverged?
B
C
D
E
Which organism is most closely related to the mouse?
Mushroom
Tomato
Fern
Sponge
Which organism is the outgroup?
A
B
C
D
Which two pairs are sister groups on this phylogenetic tree?
AB & CD
BC & EF
EF & GH
all of them
The colored boxes represent _________ on a phylogenetic tree.
Outgroups
Derived Characters
Sister Groups
Clades
All phylogenetic trees are hypotheses, they are constantly
changing with new information.
True
False
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
For the tree in this image, which order of organisms could the data fit?
1. Mida cichild; 2. W. Omdoam cpelacamth; 3. Western clawed frog
1.W. Omdoam cpelacamth; 2. Mida cichild; 3. Western clawed frog
1. Western clawed frog; 2. W. Omdoam cpelacamth; 3. Mida cichild
Which of these would be an example of an exaptation seen in species or groups of animals? (select all that apply)
trunks in elephant species
tusks in narwhals
echolocation in bats
long necks in giraffes
hair in mammals
Check out your notes - front page should have examples of exaptations. Be sure you can name an exaptation, its ORIGINAL function, and the other additional functions the trait has. You will not be able to use feathers in birds as an example on the quiz!
I can do this Mrs. Scott!
What is an exaptation? (go check your notes!)
What is an exaptation?
An adaptation that started with one function and now has several functions
An adaptation that is no longer useful for an animal to have
A harmful adaptation that causes animal groups to go extinct
A helpful adaptation that continues to be useful for a single function
Using the genetic data in the photo, place the amino acids in the correct position on the tree
Which bird is the outgroup?
Common rosefinch
Po'ouli
I'iwi
Kaua'i 'amakihi
