May 2018

Enteron in coelenterates acts as___________?

A. Digestive cavity
B. Body cavity
C. Transporting cavity
D. all of these

Porifera range in size from__________?

A. Few millimeter wide to more than one meter tall
B. Few centimeter wide to more than one meter tall
C. Few decimeter wide to more than one meter tall
D. One meter wide to more than millimeter tall.

Coelom is lined by__________?

A. Parietal mesoderm
B. Visceral mesoderm
C. Mesoderm
D. Both A & B

Of the following which one is not the characteristic of Kingdom Animalia.

A. All animals are ingestive heterotrophs
B. All animals are eukaryotes
C. All animals develop from the dissimilar gametes i.e. large sperm and small egg.
D. It is largest kingdom.

_______ are the first group of invertebrates which have developed a closed circulatory system.

A. Nematods
B. Annelids
C. Arthropods
D. Molluscs

Main blood vessel of arthropods usually:

A. Lies on dorsal side
B. Lies on ventral side
C. Lies on lateral side
D. Is not present

Second largest phylum of invertebrates is____________?

A. Porifera
B. Arthropoda
C. Mollusca
D. Chordata

Body is globular in_________?

A. Cake urchin
B. Sea Urchin
C. Sea cucumber
D. Brittle star

Body is eel like in___________?

A. Cyclostomata
B. Chondrichthyes
C. Osteichthyes
D. None of these

Notochord is present throughout life in___________?

A. Urochordates
B. Cephalochordates
C. Chordates
D. Vertebrates