What types of metabolic processes do bacteria have?

What is the first step in a life cycle of a plant reproduce sexually

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.

The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.