What causes day and night

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.

What is the next step in muscle contraction after the actin changes shape? (apex)

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16