Answer:
Yes, ink chromatography can be used by the teacher to find out whether or not a student has changed answers after a test has been graded.
Explanation:
Ink chromatography is a procedure of separating out of the desired ink from the mixture of various other types of inks or dyes. When any ink is mixed with any solvent meant for it, then it dissolves and may be distinguished from the other ink. Also another fact is helpful, which indicates that some ink are water soluble and some are alcohol soluble. Different types of ink pen uses various types of inks, when this is mixed with certain solvents the components of the mixture thus obtained forms a banding pattern which is very unique to that particular. This is also called ink chromatograph.
The answer is SPORES.
Some bacteria, take for example clostridium can be killed with heat but still leave their spores.
They are heat-resistant spores that may survive cooking and later grow and produce large numbers of cells if the storage temperature is appropriate for their growth.
Answer:
Oxygen (O2) concerntration
Temperature
pH
Speed and precision have been one of the main differences between an older and a more modern genetically modified food. In addition, these genetically modified organisms have yielded crop efficiencies although it also involves in various debates because of its unethical nature.
