I. Energy transfer in the biotic world always proceeds from the autotrophs.
II. Energy flow is unidirectional.
Ill. Energy availability is maximum at the tertiary level.
IV. There is loss of energy from one trophic level to the other.
Select the relevant statements for the forest ecosystem
1. I, II, and IV
2. I, II and III
3. I, III and IV
4. II, III and IV