Microbiology Straighterline Correct Answered Questions Pack| Already Graded A

Microorganism : Organisms too small to be seen by the naked eye Less than 1mm Unicellular If multicellular thay lack different tissues acellular microorganisms : viruses -protein and nucleic acid, viroids - RNA satellites -nucleic acid with a protein shell prions- protein Cellular microor...

In the nitrogen cycle, which of the following steps involves removal of nitrogen from the atmosphere by bacteria? : Nitrogen Fixation If enough H+ ions are added to pure water to raise the H+ concentration of the solution to ten times higher than the original concentration, what is the resulti...

The study of evolutionary relationships among organisms is called ______. : phylogeny The three cell types discussed, eukaryotes, archaea, and bacteria, all derived from ______. : Last Universal Common Ancestor Organisms called parasites are ______. : always harmful to their host Which of th...

Studies by Emil von Behring and Shibasaburo Kitasato demonstrated that inactivated toxins can induce the synthesis of antitoxins in the blood of rabbits. These antitoxins (antibodies) are the basis of... a. humoral immunity b. cell-mediated immunity c. antibiotic immunity d. phagocyte-media...

Organisms called parasites are ______. Select one: a. always harmful to their host b. the decomposers in ecosystems c. always viruses d. free-living : always harmful to their host Trees of life that illustrate the phylogenetic relationships of all organisms were traditionally based on _____...

Microbial control methods that kill/destroy __________ are able to sterilize. : endospores Sanitization is a process by which : the microbial load on objects is reduced. An example of an agent that lowers the surface tension of cells is : alcohol High temperatures _______ and low temperatures ...

The incidence of deaths from communicable disease is __________ in the US compared to the entire world. : Less Caring for patients infected with a new virus requires safety precautions for medical personnel. Choosing appropriate procedures is an example of ___________ process. : Deductive Wh...

Cell walls are not typically possessed by ______. : protozoa The two major groups of helminths are the ______ and the ______. : roundworms; flatworms Which of the following is not true of conjugation? a. Involves direct contact between cells b. Transfers genes for drug resistance c. Transfers...