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WorksheetsPhylogenetic Trees
Total questions: 28
Worksheet time: 1hrs 24mins
Who is most closely related to Taxidea taxus?
Lutra lutra
Panthera pardus
Canis latrans
Canis lupus
According to this phylogenetic tree, which creature is the least related out of all pictured?
Fish
Frog
Salamander
Human
Which of these animals does not have/produce an amniotic egg?
Turtle
Leopard
Lamprey
All three of these animals produce the amniotic egg
What is the name for the "trait" shown on these tree, such as "egg shells" and "four limbs"?
Derived characteristics
Trait nodes
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
Why are advantageous traits more likely to be passed onto offspring?
Because they are more likely to survive and reproduce.
Because they come from dominant alleles.
Because they come from recessive alleles.
Because the trait is an acquired phenotype.
In a phylogenetic tree, the branching points represent common ancestors.
Yes
NO
Do theropods have light bones?
yes
no
On the cladogram, which organism is the closest relative of the parrot?
Frog
Hare
Caiman
Parrot
All the animals to the right of the salamander would have the common characteristic of...
Fur
Claws or nails
Lungs
Jaws
Which is the newest trait?
Amniotic egg
Walking legs
Jaws
Hair
According to the cladogram, which organism is most distantly related to the human?
crayfish
grasshopper
perch
frog
According to this cladogram, sharks are MOST closely related to which organism?
Amphibians
Ray finned fish
Crocodiles
Birds
How many derived characteristics are represented on the diagram above?
2
3
4
5
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
Where is the alligator and T. rex's common ancestor?
Point A
Point B
Point C
Point D
The diagram below represents possible genetic relationships between groups of organisms.
Which statement is a valid conclusion that can be drawn from the diagram?
Insects are more complex than mammals.
Earthworms and sea stars have a common ancestor.
Snails appeared on Earth before corals.
Sponges were the last new species to appear on Earth.
A table of arachnid and insect characteristics is shown. Which characteristic could be used to distinguish between
arachnids and insects?
Jointed legs
Body segments
Presence of eyes
Presence of antennae
Who is the closest relative to the brown bear?
Giant panda
Dog
Lesser panda
Sun bear
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