First slide

Classification of Animals

Question

Read the following characters and identify the character sub-phylum vertebrata.

Moderate

A

Presence of notochord in the adult.
B

Presence of dorsal muscular heart with two, three or four chambers.
C

Presence of nephridia for excretion and osmoregulation.
D

Presence of paired appendages which may be fins or limbs.

Solution

Besides the basic chordate characters, vertebrates have a
ventral muscular heart with two, three or four chambers;
Kidneys for excretion and osmoregulation;
Paired appendages which may be fins or limbs.

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