The mariana trench is the deepest part of the world's oceans. it is located in the western pacific ocean and reaches a depth of over 36,000 feet. it is the result of a tectonic boundary that involves two high-density plates colliding. which type of boundary is it?

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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d. groundwater flows through the subsoil and deposits minerals.

the correct answer to this question is #5