Which of the following statements is are correct with respect to the trophic level 1 The amount of l...........

Geography and Environment (PCS) Concept of Ecology

Which of the following statements is/are correct with respect to the trophic level?

1. The amount of living material in both plants and animals present is called standing crop which decreases in each trophic level.

2. A given Species cannot occupy more than one trophic level in the same ecosystem at same time.

Select the correct answer using the codes given below:

1 only

2 only

Both 1 and 2

Neither 1 nor 2

Trophic Level :

Storage of energy in the system is shown by the amount of living material in both plants and animals present .The amount of living material present is called the standing crop. Usually the amount of standing crop in each tropic level decreases with each step on the food chain away from the plants.
A given organism may occupy more than one tropic level simultaneously. One must remember that the tropic level represents a functional level, not a species as such. A given species may occupy more than one tropic level in the same ecosystem at same time. For example , a sparrow is a primary consumer when it eats seeds , fruits , peas , and a secondary consumer when it eats insects and worms.