Select the correct answer from each drop-down menu. Michael is giving a presentation on the ecological pyramid of numbers. Help him complete the sentences.
In the pyramid of numbers generally, the
are the highest in number. Therefore, they occupy the base of the pyramid.
The subsequent trophic levels where the numbers of organisms decrease occupy the upper levels. However, pyramid of numbers does
not prove useful in most of the cases. Scientists have to
the number of organisms in each trophic level, which is a difficult
task.