Question

Consumption by tertiary consumer A 20 kilogram river otter (a tertiary consumer) requires the energy harnessed by about at each trophic level is lost as heat. kg of primary producers. Assume that 90% of the energy Multiple Choice Ο Ο 200,000 Ο Ο 200 Ο Ο 20,000 Ο Ο 2.000

is it 200?

Answer 1

Answer:

20,000 kg.

Explanation:

The energy pyramid i.e, the distribution goes from primary producer to the lowest which is a tertiary consumer.

So, with 20,000 kg energy in primary producer.

It will be 2000 kg energy for primary consumer.

Then it will be 200 kg energy for the secondary consumer.

And lastly, it will be 20 kg energy for the tertiary consumer.

Therefore, for the otter to have 20 kg the energy harnessed by the primary producer should be 20,000 kg if 90% of it used up as heat at each successive level.