Biology MCQs

1496 MCQs  — Everyday Science MCQs  (Page 110 of 150)

Body is globular in_________?
A. Cake urchin
B. Sea urchin
C. Sea cucumber
D. Brittle star
Which of the following are motile zooids in cnidarians?
A. Polyps
B. Medusae
C. Both of these
D. None of these
Mammals became dominant in__________?
A. Proterozoic era
B. Mesozoic era
C. Paleozoic era
D. Cenozoic era
80% of the food of sponges consists of__________?
A. Detrital organic particles
B. Zooplankton and small animals
C. Phytoplanktons
D. All of these
The function of coelom is__________?
A. To increase the size of the animals
B. To help in the functioning of reproductive system
C. To provide space for the development of organs and systems
D. None of these
A sponge of Antarctica which is more than a meter tall is____________?
A. Scolymastra joubini
B. Euplectella
C. Spongilla
D. Leucoselenia