In a food chain the largest population is that of:
A. Producers
B. Decomposers
C. Tertiary consumers
D. Primary consumers
The pyramid of numbers in a grassland ecosystem will be:
A. Linear
B. Upright
C. Irregular
D. Inverted
In a forest ecosystem, green plants are:
A. The primary producers
B. Primary producers only sometimes
C. The decomposers
D. The consumers
Biosphere is that:
A. By which life originated
B. Where individuals interact with each other
C. Which relates
D. Organic compound
The number of kinds of food chains:
A. One
B. Two
C. Three
D. Four
Trophic levels are formed by:
A. Only plants
B. Only animals
C. Only carnivores
D. Organisms linked in food chains
The first fish that eats upon the planktonic forms is:
A. Primary consumer
B. Carnivore
C. Decomposer
D. Secondary consumer
