Cell wall is richly impregnated with silica in__________?
Cell wall is richly impregnated with silica in__________?
A. Rhodophyta
B. Phaeophyta
C. Baciliariophyta
D. Euglenophyta
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Length of membranous urethra is about ___________ ?
Length of membranous urethra is about ___________ ?A. 1 cm
B. 2 cm
C. 5 cm
D. 9 cmHighest form of learning is__________________?
Highest form of learning is__________________?
A. Latent learning
B. Insight learning
C. Operant conditioning
D. InstinctCo-ordination in man is brought about by___________?
Co-ordination in man is brought about by___________?
A. Nervous system
B. Endocrine system
C. Both of these
D. none of these.Which of the following structure is not present in all the bacteria_____________?
Which of the following structure is not present in all the bacteria_____________?
A. Cell membrane
B. Chromatin bodies
C. Ribosomes
D. CapsuleWhich of the following statement about plants is incorrect?
Which of the following statement about plants is incorrect?
A. All are eukaryotes
B. They are multicellular.
C. Non-motile organisms
D. They Are heterotrophesGaseous exchange in birds occurs at level of_______________?
Gaseous exchange in birds occurs at level of_______________?
A. Alveoli
B. Air sacs
C. Bronchi
D. Parabronchi