Question 1 Animals expend energy to produce digestive enzymes. This energy expenditure is worthwhile because, by producing digestive enzymes, animals gain
the advantage of
o
digesting food more quickly.
O
using any chemical as food.
producing additional enzymes.
O
storing energy in cells.

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?