Characteristics of Lancelets:
Small
Elongated
Marine invertebrate
Lacks a jaw
No sense organs
Has a notochord
Example: Lamprey
Characteristics of Tunicates:
Marine invertebrate
Has an outer coat that is rubbery or hard
Has two siphons
Examples: sea squirts, salps
By looking for the presence of the germ layers and the primitive gut in the embryo
Answer:
Explanation:
Membrane bound organelles and eukaryotic
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