Which of the following is a/are function(s) of the internal structures of the nose?
1. filtering incoming air
2. moistening incoming air
3. detecting olfactory (smell) stimuli
4. warming incoming air
5. modifying speech vibrations

The energy needs of a human population are not affected by

Which of the following are false concerning microbes? a. microbes generate oxygen through photosynthesis.b. the primary role of microbes on the planet involves causing disease in animals and humans.c. microbes produce vitamins in the intestines.d. microbes play a role in breaking down waste and decomposing dead organisms.

As a small change in a person's dna can cause a genetic disorder