Biology Mcqs

Body is eel like in___________?

• (A)  Cyclostomata
• (B)  Chondrichthyes
• (C)  Osteichthyes
• (D)  None of these

Answer

Submitted By :Ali Uppal

Notochord is present throughout life in___________?

• (A)  Urochordates
• (B)  Cephalochordates
• (C)  Chordates
• (D)  Vertebrates

Answer

Submitted By :Ali Uppal

Which of the following fishes contained lungs?

• (A)  Lamprey
• (B)  Perch
• (C)  Plaice
• (D)  Dipnoi

Answer

Submitted By :Ali Uppal

Mammals became dominant in__________?

• (A)  Proterozoic era
• (B)  Mesozoic era
• (C)  Paleozoic era
• (D)  Cenozoic era

Answer

Submitted By :Ali Uppal

Which of the following are motile zooids in cnidarians?

• (A)  Polyps
• (B)  Medusae
• (C)  Both of these
• (D)  None of these

Answer

Submitted By :Ali Uppal

Polychaeta have____________?

• (A)  Tentacles
• (B)  Palps
• (C)  Eyes
• (D)  All of these

Answer

Submitted By :Ali Uppal

Nervous system of nematods consists of?

• (A)  Ventral nerve cord
• (B)  Dorsal nerve cord
• (C)  Lateral nerve cord
• (D)  All of these

Answer

Submitted By :Ali Uppal

All of the following are true for Platyhelminthes except____________?

• (A)  Flatwarms
• (B)  Triploblastic
• (C)  Coelomate
• (D)  Bilateral symmetry

Answer

Submitted By :Ali Uppal

Exoskeoeton of coelenterates terates is made up to__________?

• (A)  Calcium
• (B)  Silica
• (C)  Chitin
• (D)  Both A & B

Answer

Submitted By :Ali Uppal

Pseudocoelem develops from____________?

• (A)  Blastopore
• (B)  Plastoquinone
• (C)  Blastocoel
• (D)  Splitting of mesoderm

Answer

Submitted By :Ali Uppal