Question

1) Describe lake as an ecosystem giving examples of the various zones and
the biotic components in it.

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Answer 1

Answer:

lake is an ecosystem

it has 3 zones namely littoral and limnetic and profundalzones

littorazone

this is shallow zone the water is usually muddy this is home to snails crabs insects and eggs and larvae of dragonflies etc.

organisms in this zone have well developed sight.

limneticzone

this is top zone .the organisms have bright shiny grayish or silver black scales to merge with the surroundings .small shrimps are found in this zone.

profundal

this zone is dimly lit and cold .mostly heterotrophs are found in this zone.crabs fishes are found