Biology Fill in blanks.

The rate of production of biomass is called _________.

The second trophic level in lakes is represented by _________.

Humus acts as a storage of _________.

Productivity in the ocean in general is delimited by_________.

The pyramid representing the number of organisms is _________ for tree ecosystem.

The flow of energy is _________ in all the ecosystems of biosphere

The process of decomposition is optimum in presence of _________ temperature and _________ humidity.

Freshly fallen organic material is called _________.

Net primary productivity is always _________ than gross primary productivity.

The term 'ecosystem' was coined by _________ in 1935.