The term "detritivore" includes
1. decomposers
2. primary consumers
3. secondary consumers
4. autotrophs

Net primary productivity is the gross primary productivity less

1. that which is consumed by herbivores

2. that which is consumed by producer in metabolism

3. secondary productivity 

4. loss due to mortality

The major reservoir for phosphorous is 

(1) Aquifers

(2) Soil and rocks

(3) The atmosphere

(4) Clouds

The accumulation of herbivore biomass in an ecosystem is an example of 
1. biogeochemical cycles
2. transpiration
3. net primary productivity
4. secondary productivity

Which of the following pyramids can never be inverted in a natural ecosystem?

1. pyramid of numbers

2. pyramid of energy

3. pyramid of biomass

4. all can be inverted 

Plants capture approximately __________________ of the sun's energy while other trophics levels capture about _________________ of the energy available to them in their food.
1. 1%, 10%
2. 10%, 60%
3. 10%, 1%
4. 60%, 10%

Which trophic level is incorrectly defined?
1. Carnivores- secondary or tertiary consumer
2. Decomposer- microbial heterotrophs
3. Herbivores - primary consumer
4. Omnivores - Molds, yeast and mushrooms

In general, the biomass in an ecosystem will be greatest at the trophic level comprising.

1. secondary consumers

2. primary consumers

3. producers

4. tertiary consumers

Consider the following two statements:

l. The annual net primary productivity of the whole biosphere is approximately 170 billion tons (dry weight) of organic matter.

ll. Majority of this is contributed by the oceans as they occupy larger area of earth.

1. Both l and ll are correct and ll explains l
2. Both l and ll are correct but ll does not explain l
3. l is correct but ll is incorrect
4. l is incorrect but ll is correct

What percent of energy in the sunlight availble to the primary producers is converted by them into net primary productivity ?
1. 1
2. 2
3. 5
4. 10