Question

Read the following statements.
(a) Over one-third of all named species on earth are arthropods.
(b) All molluscs contain a file like a rasping organ for feeding.
(c) Nereis possess parapodia which help in swimming.
(d) Development is indirect in Bufo.
Choose the incorrect statements

• A. (a) and (b) only.
• B. (b) and (c) only.
• C. (c) and (d) only.
• D. None of these.

Answer 1

Answer: (D)

Phylum Arthropoda: This is the largest phylum of kingdom Animalia which includes insects. Over two-thirds of all named species on earth are arthropods.
Nereis possess lateral appendages, parapodia, which help in swimming.
In Molluscs, the mouth contains a file-like rasping organ for feeding, called a radula.
In Bufo (toad), fertilisation is external. They are oviparous, and development is indirect.