AP BIOLOGY

CLASSIFICATION

NINE COMMON ANIMAL PHYLA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Contain specialized features like a strong, muscular foot, and file-like feeding structure called a radula, and a characteristic outer shell.
A
mollusca
B
chordata
C
echinodermata
D
arthropoda
Explanation: 

Detailed explanation-1: -The radula is unique to the molluscs, and is found in every class of mollusc except the bivalves, which instead use cilia, waving filaments that bring minute organisms to the mouth. Within the gastropods, the radula is used in feeding by both herbivorous and carnivorous snails and slugs.

Detailed explanation-2: -Molluscs are the second largest phylum which contains a diverse range of the organism. It has a peculiar rasping tongue called a radula. It is used for feeding.

Detailed explanation-3: -It is a rasping organ. It’s a tongue-like organ with teeth on the outside. They allow the creature to sweep and scrape food from the surface, which it then consumes.

Detailed explanation-4: -The mouth structures of many molluscs include a specially adapted rasp-like tongue called a radula. The radula is a hard ribbon-shaped structure covered in rows of teeth.

There is 1 question to complete.