Question

5. a) Write two distinct features by which vertebrates are differentiated from invertebrates
b) What are protochordates?​

Answer 1

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a)Invertebrates

A majority of invertebrates have compound eyes.

Includes radial or bilateral body symmetry.

Vertebrates

All vertebrates have bilateral body symmetry.

vertibrates do not have compound eyes.

b)Protochordates are an informal category of animals (i.e.: not a proper taxonomic group), named mainly for convenience to describe invertebrate animals that are closely related to vertebrates. This group is composed of the Phylum Hemichordata and the Subphyla Urochordata and Cephalochordata.

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