Coelom is lined by
A. Parietal mesoderm
B. Visceral mesoderm
C. Mesoderm
D. Both A & B
Coelom is lined by Read More »
Biology
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.
Of the following which one is not the characteristic of Kingdom Animalia Read More »
_______ 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
Main blood vessel of arthropods usually: Read More »
Second largest phylum of invertebrates is
A. Porifera
B. Arthropoda
C. Mollusca
D. Chordata
Second largest phylum of invertebrates is Read More »
Body is globular in
A. Cake urchin
B. Sea Urchin
C. Sea cucumber
D. Brittle star
Body is globular in Read More »
Body is eel like in
A. Cyclostomata
B. Chondrichthyes
C. Osteichthyes
D. None of these
Body is eel like in Read More »
Notochord is present throughout life in
A. Urochordates
B. Cephalochordates
C. Chordates
D. Vertebrates
Notochord is present throughout life in Read More »
Which of the following fishes contained lungs?
A. Lamprey
B. Perch
C. Plaice
D. Dipnoi
Which of the following fishes contained lungs? Read More »
Mammals became dominant in
A. Proterozoic era
B. Mesozoic era
C. Paleozoic era
D. Cenozoic era
Mammals became dominant in Read More »