Describe the roles of microbes in: a. The formation of root nodules and The Rhizosphere c. The Ruminant Stomach

Concerns with the resident microflora of the Gl tract and certain toxicants include A Microflora are not affected by toxicants В Toxicants may enhance overgrowth of microflora C) May participate through their biotransformation properties in carcinogenesis Toxicants may eradicate the normal microflora population

Which of the following statement is INCORRECT?A. Bacteria can decompose organic nitrogen.B. Biological nitrogen fixation is carried out by bacteria.C. Ammonia, ammonium ion and nitrate ion are examples of biological availablenitrogen.D. Denitrifying bacteria converts atmospheric dinitrogen gas into nitrate ion.E. Nitrification is the process of converting reactive nitrogen into another form ofreactive nitrogen.

Think about ticks and Lyme's Disease or Rocky Mountain Spotted Fever. This situation is best described by.....   A. mutualism   B. exoparasite   C. hyperparasitism   D. hypergonadism

Your grow our microorganisms without oxygen, which ones will not grow? (Microbe Minute) • A. Pectobacterium carotovorum and Haemophilus influenzae • B. Agrobacterium tumefaciens and Pectobacterium carotovorum • C. Haemophilus influenzae O D. Agrobacterium tumefaciens and Francisella tularensis • E. Francisella tularensis and Shigella flexneri

4) Which statements about mycotoxins is not true? a. They are toxic molecules made by mold b. [Fungi don't need mycotoxins for their survival c. Small quantities are toxic to humans High heat cooking destroys them d. e. About 25% of world crops affected

Microbes that have recently become pathogenic cause______________diseases.   A. acute   B. lethal   C. emerging   D. infectious   E. chronic it is not D