Coelom is lined by__________?
A. Parietal mesoderm
B. Visceral mesoderm
C. Mesoderm
D. Both A & B
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
Which of the following fishes contained lungs?
A. Lamprey
B. Perch
C. Plaice
D. Dipnoi
Mammals became dominant in__________?
A. Proterozoic era
B. Mesozoic era
C. Paleozoic era
D. Cenozoic era