You must decide how to classify a newly discovered organism, but you have only limited test materials to help you make your decision. Chemical A glows if a nuclear envelope is present. Chemical B turns blue in the presence of chloroplasts
Chemical C fizzes when mixed with chitin. After testing the organism, you find out that it glows, doesn't turn blue, and fizzes. You classify this organism as a
A) diatom.
B) bacterium.
C) slime mold.
D) fungus.
E) zooflagellate.
D
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The abundance of cyanobacterial mats has greatly declined due to the evolution of
A) antimicrobial-producing fungi. B) bacteriophages. C) metazoan grazers. D) Proteobacteria.
Small circular DNA molecules capable of self-replication are called:
a. introns. b. exons. c. plasmids.
Coral bleaching where the photosynthetic endosymbiont is lost or becomes nonfunctional can be caused by temperature increases as small as 2oC.
Answer the following statement true (T) or false (F)
All of the following are examples of different types of microbiological media except
A. Petri dish. B. enriched. C. agar. D. broth. E. gelatin.