A. Producers
B. Primary consumers
C. Secondary consumers
D. Disinfectants
Related Mcqs:
- Energy flow and energy transformations in living systems strictly conform to the:
A. Law of limiting factors
B. Liebig’s law of minimum
C. Laws of thermo dynamics
D. Shelford’s law of tolerance
E. Biogenetic law - The ration of food energy assimilated to the food energy ingested is called:
A. Trophic level efficiency
B. Photosynthetic efficiency
C. Net production efficiency
D. Assimilation efficiency - The transfer of energy from one trophic level to another is governed by the 2nd law of thermodynamics. The average efficiency of energy transfer from herbivores to carnivores is:
A. 25%
B. 50%
C. 10%
D. 5% - The rate at which light energy is converted into chemical energy of organic molecules is the ecosystem’s:
A. Net primary productivity
B. Gross secondary productivity
C. Net secondary productivity
D. Gross primary productivity - In a food chain, the total amount of living material is depicted by: A. Pyramid of biomass B. Pyramid of energy C. Pyramid of number D. Trophic levels
xA. Pyramid of biomass
B. Pyramid of energy
C. Pyramid of number
D. Trophic levels - Largest amount of fresh water on our planet is contained:
A. In lakes and streams
B. In rivers
C. Underground
D. On polar ice and glaciers - Which of the following is non-renewable source of energy:
A. Mineral
B. Water
C. Forest
D. Solar energy - Which one of the following is a reversible source of energy?
A. Petroleum
B. Coal
C. Nuclear fuel
D. Trees - Which of the following food chain may not be directly dependent upon solar energy?
A. Grazing
B. Detritus
C. Soaking
D. Depleting - Which of the following horizons has the maximum amount of organic matter?
A. Horizons A2 and B
B. Horizon B only
C. Horizon A1
D. Horizons B and C
The correct answer to the question: "Which of the following has the largest amount of energy?" is "Producers ".
