When studying living organisms, why is it important to start with the cell first?

Which experiment would most likely contain experimental bias ?

According the inverse square law, doubling the distance from the source of the sound, a speaker, for example, will drop the sound 6 db each time. if you were standing in the back of an auditorium, 32 feet away from a speaker not using any amplification, would you be able to hear a speaker clearly? why or why not?

Fungi are classified into how many groups? a. 1 group b. 2 groups c. 3 groups d. 4 groups