Photosynthetic activity is maximum in this zone.

The zone in marine ecosystem which is dark and cold throughout the year?

Electric eel is capable of generating power electric shocks of up to

Identify the salt water lake.

The factors effect the organisms in fresh water ecosystem

The salt content of sea water is

Some plants in temperate regions shed their leaves before the

What is the term for all the biotic and abiotic components of a system?

Which of the following is a marine adaptation?

A coastal body of water connected to the ocean and supplied with fresh water from a river is an