Biology MCQs

1496 MCQs  — Everyday Science MCQs  (Page 142 of 150)

Cell wall is richly impregnated with silica in__________?
A. Rhodophyta
B. Phaeophyta
C. Baciliariophyta
D. Euglenophyta
Unlike other algae, diatoms do not readily decay due to___________?
A. Nonliving cells
B. Siliceous wall
C. Mucilaginous wall
D. Water proof cell
Centric discoid form of diatoms is__________?
A. Diplaneis
B. Coscinodiscus
C. Camphyloneiscus
D. Stephanodis
Which of the following diseases induce immunity?
A. Smallpox
B. Jaundice
C. Diabetes
D. None of these
Which one of the following organisms can serve as a biofertilizer for rice crop?
A. Blue-green algae
B. Rhizobium sp.
C. Mycorrhizal fungi
D. None of these