Two species that occupy the same niche but live in different geolographical regions

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.

Are salt and soap nutrients or toxins for yeast? explain.

If the frequency of the p allele is .63 in the population then what is the frequency of the q allele?