In a pond ecosystem, benthos means
Primary consumers in the depth of a pond
Zooplankton on the water surface
Periphyton
Epineuston
The green plants in an ecosystem which can trap solar energy to convert it into chemical bond energy are called
A food chain starts with
Name an organism found as secondary carnivore in an aquatic ecosystem.
Which of the following ecosystems has highest productivity?
Primary producer of an ecosystem is