Which of the following microbes can oxidize ferrous iron while using chlorate or perchlorate as the electron acceptor?
A. Thiobacillus ferrooxidans
B. Ferribacterium limneticum
C. Dechlorosoma suillum
D. Pseudomonas denitrificans
Answer: C
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Capillary walls consist of
a. stratified squamous epithelium. b. simple squamous epithelium. c. simple cuboidal epithelium. d. stratified cuboidal epithelium. e. simple columnar epithelium
What does "adaptation" mean in an evolutionary context?
A) the way an individual's body adjusts to its environment B) the accumulation of favorable variations in a population over time C) the ability of organisms to alter their appearance under changing environmental conditions D) all of the above
Which aspect of pigments makes them efficient in capturing light?
a. They all share a region where hydrogen atoms are covalently bonded to each other with single bonds. b. They all share a region where hydrogen atoms are covalently bonded to each other with alternating single and double bonds. c. They all share a region where carbon atoms are covalently bonded to each other with alternating single and double bonds. d. They all share a region where c
What is the raw material for photosynthesis?
a. sugar and water b. sugar and oxygen c. carbon dioxide and oxygen d. carbon dioxide and water