Which of the following organisms is not normally found on the skin?
A.
Staphylococci
B.
Diptheroids
C. Candida spp.
D. Malassezia spp.
C.
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According to the phylogeny shown below, which of the following is a synapomorphy of ascomycetes and basidiomycetes?
A. regular septa B. complex, multicellular fruiting bodies C. chitin in cell walls D. hyphae E. All the answer options are correct.
In subarctic saltmarshes, the addition of phosphorus has no effect on productivity but additional nitrogen will increase productivity. In this example, nitrogen is a
A. stimulant of evapotranspiration. B. precursor to phosphorus. C. biomagnifying factor. D. limiting factor. E. lipid solvent.
Which of the following sequences indicates the promoter region of a gene?
a. CAAT b. UAAG c. CTTT d. ACAT e. TAAC
Enzymes are specialized proteins. Where in the cell would enzymes be produced?
A) chloroplasts B) lysosomes C) mitochondria D) ribosomes