NEET UG 2015 — Ecosystem

In an ecosystem the rate of production of organic matter during photosynthesis is termed as:

The mass of living material at a trophic level at a particular time is called:

An association of individuals of different species living in the same habitat and having functional interactions is:

In which of the following both pairs have correct combination?

Vertical distribution of different species occupying different levels in a biotic community is known as:

Most animals that live in deep oceanic waters are: