A. Increases transpiration by increasing the surface area of the leave.
B. Small and thick leaves to decrease the surface area proportional to the volume of the leave.
C. Stomata closing in sufficient supply, and opening in restricted supply of water.
D. None of these
Related Mcqs:
- Steps Involved in scientific method are ?
A. Hypothesis –>Accumulated data –> observation & experimentation –> conclusion
B. New data —> Conclusion —> Accumulated data —> Observation & experimentation
C. Accumulated data – New data – Observation & experimentation – Hypothesis –> Conclusion
D. Accumulated data —> Hypothesis –> Observation & experimentation —> New data —> Conclusion - In Hardy-Weinberg formula P2 represents frequency of_____________?
A. Recessive allele
B. Dominant allele
C. Homozygous dominant individual
D. Homozygous recessive individual - C6H12O6 + 6O2 ? 6CO2 + 6H20 + ENERGY represents:____________?
A. Photosynthesis
B. Aerobic respiration
C. Anaerobic respiration
D. Respiration - Of the following which one is not the characteristic of mitochondria?
A. It contains F1 particles
B. It is involved in the synthesis of protein
C. It is a self replicating organelle
D. Number of mitochondria is constant - Which of the following statement about eiliates in incorrect_____________?
A. Contain mainly unicellular organisms.
B. Their contractile vacoule is respobsible for water regulation.
C. They are even capable of sexual reproduction.
D. Diploid nucleus being smaller is responsible for cells metabolism and growth while polyploidy nucleus functions in sexual process. - Which of the following structure primarily helps in attachment of bacteria on various surfaces____________?
A. Flagella
B. Pili
C. Both of these
D. None of these - Which of the following acts as thermoregulator?
A. Cerebrum
B. Cerebellum
C. Thalamus
D. Hypothalamus - Which of the following statement is incorrect about Molluscans?
A. They are surrounded by single or double pieces of hard skeleton.
B. Their shell grows as the animal grows.
C. They have hydrostatic skeleton.
D. They move by tube feet - Which of the following bones are present in pectoral girdle?
A. Clavicle
B. Scapula
C. Both of these
D. None of these - Which of the following structure in plant’s body is called excretophores?
A. Stem
B. Leaves
C. Flowers
D. Roots
