Each layer in a soil profile is called _______________.
A. dirt
B. humus
C. topsoil
D. a horizon
E. a bed
Ans: D. a horizon
Biology & Microbiology
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An inflammation of the mucous membranes of the oral cavity caused mostly by herpes simplex virus is:
a. laryngitis. b. pharyngitis. c. Vincent angina. d. stomatitis.
Biology & Microbiology
Fructose and glucose are
a. able to combine to form sucrose. b. structurally different. c. monosaccharides. d. simple sugars. e. all of these.
Biology & Microbiology
List the main steps involved in converting pre-mRNA to mRNA. Explain the purpose of each step. What will be an ideal response?
Biology & Microbiology
When two species battle for resources until one is driven locally extinct, the process is called
a) parasitism b) mutualism c) competitive exclusion d) character displacement e) resource partitioning
Biology & Microbiology