A. Primary consumers
B. Secondary consumers
C. Carnivores
D. Primary producers
Related Mcqs:
- The first fish that eats upon the planktonic forms is:
A. Primary consumer
B. Carnivore
C. Decomposer
D. Secondary consumer - The phytoplanktonic forms of plants are:
A. Insectivorous type
B. Heterotrophs
C. Chemotrophs
D. Autotrophs - Major land forms Cholistan Desert ranges is / are :
A. Subrecent river plain
B. The first sandy terrace above the Hakra River (late pleistocene)
C. The second sandy terrace above the Kakra River plain (late pleistocene)
D. The third sandy terrace above the Hakra River plain (middle pleistocene)
E. All of the above - The incorporation of minerals by microbes is called:
A. Mineralization
B. Humification
C. Nutrient immobilization
D. Microbe immobilization - What is contributed from the outer space in an ecosystem?
A. All the atmospheric gases
B. Only carbon, hydrogen and oxygen
C. Energy only
D. All the above components - The pyramid of biomass in a shallow pond ecosystem is:
A. Inverted
B. Upright
C. Rhomboidal
D. Liver - One of the major difficulties in the biological control of insect pests is that:
A. The predator develops a preference to other diets and may itself become a pest
B. They do not always survive when transferred to a new environment
C. The method is less effective as compared to the use of insecticides
D. The practical difficulty in introducing the predator to specific area - Which one of the following pairs is a sedimentary type of biogeochemical cycle?
A. Oxygen and nitrogen
B. Phosphorus and Sulphur
C. Phosphorus and CO2
D. Phosphorus and nitrogen - Forest Ecosystem means:
A. The produces in forest are actual at different strata from the ground level to the canopy of trees.
B. The litter and consequently the humus layers is thick
C. Both (a) & (b)
D. None of these - These belong to the category of primary consumers:
A. Snakes and frogs
B. Water insects
C. Eagle and snakes
D. Insects and cattle
