If the producer has 40,000 kcal of energy and the primary consumer 4000 1 point
kcal, how much energy was passed on? *

10% energy was passed on if the producer has 40,000 kcal of energy and the primary consumer 4000 Kcal.

The right answer is option 2.

Explanation:

The producer is the initiator of food chain in a food chain and pyramid.

The amount of energy transferred or pass on to the other level or higher level is 10%. The 90% percent energy is being consumed by organism of the trophic level in carrying out metabolic processes, reproduction etc.

The heat gets dissipated only a small amount reaches the other trophic level.

This logic is also called 10% rule of energy transfer.

So, the producer has 40,000 Kcal of energy

primary consumer comes just after producer as it is a herbivore.

so,

x 40000

= 4000 Kcal

Thus 10% of the energy is passed on.