Prechordates is another name used for___________?

A. Echinoderms
B. Hemichordates
C. Vertebrates
D. Chordates

True metamorphosis is not present in________?

A. Crustacea
B. Insecta
C. Arachnida
D. Myriapoda

Pin warm is common name used for__________?

A. Rhabditis
B. Enterobius vermicularis
C. Ancylostoma duodenale
D. Taenia solium

All of the following are true for Platyhelminthes except____________?

A. Flatwarms
B. Triploblastic
C. Coelomate
D. Bilateral symmetry

Nervous system of nematods consists of?

A. Ventral nerve cord
B. Dorsal nerve cord
C. Lateral nerve cord
D. All of these

Polychaeta have____________?

A. Tentacles
B. Palps
C. Eyes
D. All of these

__________ are believed to have common origin with annelids.

A. Nematods
B. Arthropods
C. Molluscs
D. None of these

All of the following coelenterates show alternation of generation except:

A. Hydra
B. Obelia
C. Aurelia
D. None of these

Excretory system of platyhlminthes consists of___________?

A. Nephridia
B. Flame cells
C. Malpighian tubules
D. Nephrons

Pseudocoelem develops from____________?

A. Blastopore
B. Plastoquinone
C. Blastocoel
D. Splitting of mesoderm