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
In which of the following there is no difference?
A. Primary carnivore and trophic level II
B. Secondary consumers and herbivores
C. Primary consumers and herbivores
D. Trophic level I and herbivores
In desert grasslands, which type of animals are relatively more abundant?
A. Diurnal
B. Arboreal
C. Aquatic
D. Fossorial
In a biotic community, primary consumers are:
A. Herbivores
B. Detrivores
C. Carnivores
D. Omnivores
In an ecosystem, bacteria are considered as:
A. Microconsumers
B. Secondary consumers
C. Primary consumers
D. None of these
Biological equilibrium is found among the:
A. Producers and consumers
B. Producers and decomposers
C. Producers, consumers and decomposers
D. Producers and light
The number of individuals of a species in a particular ecosystem at a given constant due to:
A. Man
B. Parasites
C. Predators
D. Available food
