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### Animals: Mastery Test

A jellyfish is a type of cnidarian, a squid is a type of mollusk, and a dolphin is a type of vertebrate.

Which two characteristics are present in both a squid and a dolphin, but not present in a jellyfish?

A. an endoskeleton and a notochord
B. radial symmetry and a segmented body plan
C. bilateral symmetry and a coelom
D. multicellularity and body tissues

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Answer :

GinnyAnswer

Final answer:

Squids and dolphins share the characteristics of an endoskeleton and notochord, which are absent in jellyfish.


Explanation:

In this scenario, the two characteristics present in both a squid and a dolphin, but not in a jellyfish, are an endoskeleton and a notochord. Squids and dolphins are both vertebrates, possessing these two features, while jellyfish, being cnidarians, lack both.


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