Industrial canning processes are designed to preserve foods by eliminating most contaminating microorganisms, yet canning technically does not sterilize food (according to the precise definition of sterilization) because .

hyperthermophiles may still be present.

Explanation:

Just like it is written in the first statement of the question above, the term "Canning" can simply be defined as a process used in preserving foods and this is done by packing the food to be preserved in a container and sealed. Foods such as vegetables, fruits, tomatoes and sea foods(fishes) can be preserved through canning.

Although, the process of canning involves heating to kill some micro organisms but according to precise definition of sterilization there might be some micro organisms that can still exist at such temperature of canning and these organisms are known as hyperthermophiles.

hey bro i looked it up on google the structure of the eye-spot in euglena viridie, e. ehrenbergii, and phacus pyriyorme is not as franzé haa described it. the so-called “crystal body” and “lens bodies” were not found in any of the individuals of the species examined by me. as earlier observers have stated, the eye-spot consists simply of a mass of pigment granules arranged in a single layer, and probably embedded in a protoplasmic framework, but the latter could not be seen, and its presence was only inferred from the fact that the pigment granules must be held together in some way, thd the eye-spot as a whole is capable of expansion, and that the pigment granules can be separated from each other.

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