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WorksheetsAnimal Cladogram Review
Total questions: 10
Worksheet time: 5mins
Which is a major difference between echinoderms and chordates?
Chordates are deuterostomes
Echinoderms are deuterostomes
Echinoderms are radially symmetric
Chordates are asymmetric
Is there any clade which includes only protostome animals (and not deuterostomes)?
Yes - all protostomes form a clade
No - all clades of protostomes also include deuterostomes
No - all clades of deuterostomes also include protostomes
What is one example of an analogous trait that appears on the cladogram (a trait that develops two or more separate times)?
Asymmetry
Diploblastic
Triploblastic
Radial symmetry
What type of animal evolved before a 2nd tissue layer?
Mammals, birds, & reptiles
Jelly fish & coral
Flatworms
Sea sponges
Are jelly fish and coral protostomes or deuterostomes?
Protostomes
Deuterostomes
They are both
They are neither
Of the animals united by a unique larva, which phylum would be considered the outgroup?
Platyhelminthes
Mollusca
Annelida
None of these, because they share a clade
Which trait is shared by all animals present?
Bilaterally symmetric
Two tissue layers
Multicellular
Being a deuterostome
Locate the common ancestor of jelly fish and mammals. Select ALL of the traits that ancestor had.
Deuterostome
Multicellular
2 tissue layers
Bilaterally symmetric
Segmentation
Which group is a closer relative of nematoda: cnidaria OR echinoderms? Explain your answer.
Cnidaria - they are closer on the cladogram
Echinoderms - they are in a clade that excludes Cnidaria
Cnidaria- they are in a clade that excludes Echinoderms
Echinoderms - they are closer on the cladogram
Which common ancestor is oldest?
The ancestor of...
Nematoda and Mollusca
Mollusca and Annelida
Annelida and Chordata
Chordata and Echinodermata
