Looking for classes? Ksquare Career Institute, Bengaluru →
Non-chordate and Chordate Phyla
Concepts tested here
- General characters of phyla
All Questions
2008 AIPMT 1 question
-
Which one of the following phyla is correctly matched with its two general characteristics?Mollusca: molluscs are usually dioecious and oviparous, with indirect development through a larval stage, the trochophore or the veliger larva. Both characters are correct as general features of the phylum.
Echinodermata: the adults do show pentamerous radial symmetry, but fertilisation is usually external, not internal.
Arthropoda: the body is divided into head, thorax and abdomen, but respiration by tracheae is not a general character; arthropods respire by gills, book gills, book lungs or the tracheal system in different groups.
Chordata: a notochord is present at some stage, but separate anal and urinary openings to the outside are not a general character; many chordates have a common opening, the cloaca.
So the phylum correctly matched with both its general characteristics is Mollusca.