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.

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

the cold front replaces the warmer air at the ground level changing the wind to be breezy and denser.there is also an immediate drop in the temperature.

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.