can anyone explain it .
Answers
From path 1
Snake gets 10 J energy.............(i)
From path 2
Snake gets 100 J energy................(ii)
Subtracting (i) from (ii)
100 - 10 = 90
Thus the difference of energy snake gets from the two paths is 90 J
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10% law states that during transfer of energy from one trophic level to another only 10 % is transferred wile the rest are lost in the form of heat energy.
Use the 10 % law.
Use 1 kJ = 1000 J
The grasshopper and rat will receive 10/100 × 1000 J
= 100 J
The frog will receive 10 / 100 × 100 J
= 10 J
The snake gains from here 10 / 100 × 10 J
= 1 J ..............................(1)
The rat gains 100 J .
The snake gains from here 10 / 100 × 100 J
= 10 J ..............................(2)
Difference between the two paths = 10 J - 1 J
= 9 J
The energy difference will be 9 J
Hope it helps !