. If 100 J energy is available at the producer level in a food chain then the energy available to the secondary consumer will be:
(a) 10 J
(b) 0.1 J
(c) 1 J
(d) 0.01 J
Explain it briefly
Answers
Energy which will reach secondary consumer will be - (c) 1 J
Food chain has trophic levels. These levels denotes type of organisms in a food chain. Transfer of energy through this food chain occurs, with only 10% passage of energy. This means 90% of energy is wasted at each trophic level. The sequence of trophic level is -
Producer, primary consumer, secondary consumer, tertiary consumer.
Question asks energy transferred from producer to secondary consumer level, thus -
Producer to primary consumer -
100*10/100
Thus, 10 J of energy, out of 100 J reaches primary consumer.
Primary consumer to secondary consumer energy transferred is - 10*10/100
Thus, only 1 J of energy will reach secondary consumer.
Answer:
1 joule is the answer
1 % transfer hoti hai