Question

In a Ecosystem:
(a) Cycling of energy and nutrients is a coupled process
(b) Cycling of energy is an independent process
(c) Movement of energy is unidirectional
(d) Both macro and micro consumers are necessary
Choose correct statement(s) :

• A. Only a
• B. Only c
• C. a and c both
• D. Only d

Answer 1

The correct option is C a and c both

Ecosystems maintain themselves by cycling energy and nutrients obtained from external sources. At the first trophic level, primary producers (plants, algae, and some bacteria) use solar energy to produce organic plant material through photosynthesis. Thus, Cycling of energy and nutrients is a coupled process. Movement of energy in ecosystem is unidirectional. It starts from the producer and ends at the top consumer. Also cycling of energy is not an independent process, it includes many other factors.

So the correct option is ' a and c both '.