What is the difference between a biotic and abiotic factor

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.

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone

Categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. makes predictions