A. Photoperiodism
B. Thermotropism
C. Vernalisation
D. Thermoregulation
Related Mcqs:
- _________ stimulates the production of gastric juice in the stomach:
A. Gastrin
B. Enterokinase
C. Rennin
D. None of theseSubmitted by: Nayab Idrees
- The number of calories required to raise the temperature of 1g of water from 15 to 16?C is called___________?
A. Specific Heat of Vaporization
B. Specific Heat capacity
C. Caloric Heat
D. Both A and C - Abscisic acid promotes flowering in short day plants and inhibits in long day plants, which of the following is antagonistic to abscisic acid in terms of flowering______________?
A. Gibberellins
B. Cytokinins
C. Auxins
D. Ethene. - Epiphytes are plants which depend on other plants for________?
A. food
B. mechanical support
C. shade
D. None of theseSubmitted by: Tauqeer Ahmad Rajput
- In condition of high temperature, following does not occur or occurs at low level__________?
A. Vasodilation
B. Activation of sweat glands
C. Thermogenesis
D. Evaporative cooling - If enzyme concentration is low than substrate pH and temperature values are equal to requirement then which of the following will increase rate of reaction____________________?
A. increase in concentration of enzyme
B. increase in concentration of substrate
C. increase in pH
D. increase in temperature - Destruction of all life forms is called___________?
A. Sterilization
B. Disinfection
C. Antisepsis
D. Preservation - Parasitic fungi absorb nutrients directly from the living host cytoplasm with the help of special hyphal tips called___________?
A. Mildew
B. Constricting ring
C. Haustoria
D. All of these - A pressure created by active secretion of salts and other solutes from other cells into xylem sap is called___________?
A. Transpiration pull
B. Root pressure
C. Osmotic pressure.
D. None of these - The utilization of the products of digestion is called___________?
A. ingestion
B. absorption
C. assimilation
D. both a and bSubmitted by: Maryam Aftab
