search
arrow-left Previous
Next arrow-right
Q: Which is the second largest animal phylum?
  • A. Ctenophora
  • B. Mollusca
  • C. Porifera
  • D. Platyhelminthes
Correct Answer: Option B - Mollusca is the second largest phylum of invertebrate animals after phylum Arthropoda. Nomenclature was done by the scientist Linnaeus (1758), coined the name of this phyla. The molluscs are among the most diverse and well-known of the invertebrate group and include the clams, snails, tusk, shells, chitons and squids. Around 85,000 extant species of molluscs are recognised.
B. Mollusca is the second largest phylum of invertebrate animals after phylum Arthropoda. Nomenclature was done by the scientist Linnaeus (1758), coined the name of this phyla. The molluscs are among the most diverse and well-known of the invertebrate group and include the clams, snails, tusk, shells, chitons and squids. Around 85,000 extant species of molluscs are recognised.

Explanations:

Mollusca is the second largest phylum of invertebrate animals after phylum Arthropoda. Nomenclature was done by the scientist Linnaeus (1758), coined the name of this phyla. The molluscs are among the most diverse and well-known of the invertebrate group and include the clams, snails, tusk, shells, chitons and squids. Around 85,000 extant species of molluscs are recognised.