The soil layer surrounding plant roots, called the rhizosphere, has been shown in some cases to _____
A) contain fungi that produce an endotoxin which inhibits the growth rhizomes
B) inhibit the growth of fungal pathogens
C) produce vitamins essential for the uptake of nitrogen
D) contain archaea which produce antibiotics that prevent the growth of most bacteria
B
You might also like to view...
Which is NOT a compound?
a. salt (NaCl) b. a carbohydrate (contains C, H and O) c. carbon (C) d. a nucleotide (contains P, C, H, and O) e. methane (CH4)
Gel electrophoresis separates the DNA fragments
according to a. their length. b. their mass. c. their speed of travel through the gel. d. the number of nucleotides in the fragment. e. all of these.
Which of the following can be found in bacteria, but not viruses?
A. a cell membrane B. genetic material C. nucleic acids D. proteins
Choose all of the correct statements below?
> COC's microbiology laboratory is a BSL-2 lab > Gloves are not necessary when working with BSL-2 organisms > Gloves should always be worn during staining > COC's microbiology laboratory is a BSL-3 lab > Gloves should be worn at all times in COC's microbiology laboratory > Lab coats should be worn at all times in COC's microbiology laboratory > No open flames are permitted in COC's microbiology laboratory > It is okay to have mobile phones and laptops on the bench in COC's microbiology laboratory