Thiobacillus ferrooxidans is a type of bacteria that oxidizes iron compounds for energy and then uses that energy to build carbohydrates. we might best recognize this bacterium as the rust-colored ring that builds up inside toilet bowls. thiobacillus ferrooxidans is an example of a
a) chemoautotrophs
b) chemoheterotroph
c) photoheterotrophs
d) photoautotrophs

The correct answer is option - chemoautotrophs.

Explanation:

Chemoautotrophs are one of the chemotrophic organisms that obtain their energy by chemosynthesis instead of photosynthesis or oxidation of electron donors present in their environment. Such organisms are bacteria or protozoans generally and the molecules from they get their energy can be organic or inorganic molecules.

Thiobacillus ferroxidans is also an example of chemoautotrophic organisms.

Thus, the correct answer is option A. chemoautotrophs.

answer: "circumcision is a common procedure in which the skin covering the tip of the penis is surgically removed."

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."