A. electric organs of fishes
B. stings of rays
C. sebaceous glands of mammals
D. salivary glands of vertebrates
✅ The correct answer is option D.
Biology MCQs
Process of cell division can take place by
A. heterosis
B. fusion
C. mitosis
D. None of these
✅ The correct answer is option C.
Plants absorb most part of water needed by them through their
A. embryonic zone
B. growing point
C. root hairs
D. zone of elongation
✅ The correct answer is option C.
Plant have ____ while animals lack it.
A. starch
B. cellulose
C. protein
D. fat
✅ The correct answer is option B.
Photo-oxidation is
A. photorespiration
B. photolysis
C. light and oxygen induced breakdown
D. All of the above
✅ The correct answer is option D.
Mutation is
A. a factor responsible for plant growth
B. a change which affects the offspring of F2 generation only
C. a change that is inherited
D. a change which affects the parents
✅ The correct answer is option C.
Plants are killed in winter by frost
A. because of desiccation and mechanical damage to the tissues
B. because no photosynthesis takes place at such low temperature
C. because respiration ceases at such low temperature
D. because there is no transpiration
✅ The correct answer is option A.
One of the following is most suitable for study of mutations
A. Haploids
B. Diploids
C. Tetraploids
D. Polyploid
✅ The correct answer is option A.
Photosynthesis generally takes place in which parts of the plant?
A. Leaf and other chloroplast bearing parts
B. stem and leaf
C. Roots and chloroplast bearing parts
D. Bark and leaf
✅ The correct answer is option A.
Pulses are a good source of
A. carbohydrates
B. fats
C. proteins
D. vitamins
✅ The correct answer is option C.