Write the relationship between lake and birds on tree?

Explanation

a. The lake and birds on tree are related to aquatic ecosystem.
b. Apart from the terrestrial ecosystem , birds also form a part of aquatic ecosystm, e.g., ponds, lakes, etc.
This can be explained by the following food chain `:`
Phytoplanktons `rarr `Zooplanktons `rarr `Fishes `rarr `Birds.
c. Phytoplanktons growing in pond are food for zooplanktons. These zooplanktons are then eaten by fishes . Birds feed on these fishes.
d. According to this food chain , birds are also a part of lake ecosystem.