1.

Citing lake as an example of a simple aquatic ecosystem, interpret how various functions of this ecosystem are carried out. Make a food chain that is functional in this ecosystem.

Answer»

i. Productivity: Conversion of inorganic into organic material with the help of solar energy by the autotrophs. 

ii. Energy flow: Unidirectional movement of energy towards higher trophic level (and its dissipation and loss as heat to the environment). 

iii. Decomposition: Fragmentation, leaching, catabolism, humification, mineralization by bacteria, fungi and flagellates (abundant at the bottom of lake). 

iv. Nutrient cycling: Decomposition of dead matter to release the nutrients back to be re-used by the autotrophs.

Food chain in aquatic ecosystem (lake):

Phytoplanktons → Zooplanktons → Small fish → Big fish (Any other appropriate example).


Discussion

No Comment Found

Related InterviewSolutions