- (A) Primary xylem
- (B) Secondary xylem
- (C) Primary phloem
- (D) Secondary phloem
Biology Mcqs
- (A) Those lysosomes which eat parts of their own cells to generate energy.
- (B) Those lysosomes which eat old and worn out cellular organelles.
- (C) Lysosomes which help in extracellular digestion
- (D) Both a and b
- (A) 5
- (B) 7
- (C) 9
- (D) 12
- (A) Cold blooded animal
- (B) Ectotherm
- (C) Endotherm
- (D) Heterotherm
- (A) Primary wall
- (B) Secondary wall
- (C) Middle lamella
- (D) all of the above
- (A) Rhizobium
- (B) Nitrosomonas
- (C) Nitrobacter
- (D) Pseudomonas
- (A) More than 2500 mm
- (B) 750-1500 mm
- (C) 250-750 mm
- (D) Less than 250 mm
- (A) Primary wall
- (B) Secondary wall
- (C) Middle lamella
- (D) All of these
- (A) CO2
- (B) O2
- (C) Water
- (D) Nutrients
- (A) Nucleolus
- (B) Nucleus
- (C) DNA
- (D) RNA
