_______ are the first group of invertebrates which have developed a closed circulatory system.
_______ are the first group of invertebrates which have developed a closed circulatory system.
A. Nematods
B. Annelids
C. Arthropods
D. Molluscs
Biology Mcqs
Main blood vessel of arthropods usually:
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 »
Biology McqsSecond largest phylum of invertebrates is____________?
Second largest phylum of invertebrates is____________?
A. Porifera
B. Arthropoda
C. Mollusca
D. Chordata
Second largest phylum of invertebrates is____________? Read More »
Biology McqsBody is globular in_________?
Body is globular in_________?
A. Cake urchin
B. Sea Urchin
C. Sea cucumber
D. Brittle star
Body is globular in_________? Read More »
Biology McqsBody is eel like in___________?
Body is eel like in___________?
A. Cyclostomata
B. Chondrichthyes
C. Osteichthyes
D. None of these
Body is eel like in___________? Read More »
Biology McqsNotochord is present throughout life in___________?
Notochord is present throughout life in___________?
A. Urochordates
B. Cephalochordates
C. Chordates
D. Vertebrates
Notochord is present throughout life in___________? Read More »
Biology McqsWhich of the following fishes contained lungs?
Which of the following fishes contained lungs?
A. Lamprey
B. Perch
C. Plaice
D. Dipnoi
Which of the following fishes contained lungs? Read More »
Biology McqsMammals became dominant in__________?
Mammals became dominant in__________?
A. Proterozoic era
B. Mesozoic era
C. Paleozoic era
D. Cenozoic era
Mammals became dominant in__________? Read More »
Biology McqsWhich of the following are motile zooids in cnidarians?
Which of the following are motile zooids in cnidarians?
A. Polyps
B. Medusae
C. Both of these
D. None of these
Which of the following are motile zooids in cnidarians? Read More »
Biology McqsIn sponges fertilization takes place in____________?
In sponges fertilization takes place in____________?
A. Ectoderm
B. Mesenchyme
C. Endoderm
D. Uterus
In sponges fertilization takes place in____________? Read More »
Biology Mcqs