TIMED BIOLOGY QUIZ PLS HELP ME WITH THIS QUESTION (picture) :) 50 points

The mechanisms of reproductive isolation are a bunch of evolutionary mechanisms, with different behaviors for speciation. They are important for speciation because they prevent members of different species from producing offspring, or ensure that any offspring are sterile. An example of prezygotic is habitat. An example of postzygotic is hybrid breakdown.

this protocol provides a detailed procedure for agarose-based ip to purify and enrich the protein of interest.

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.

hope this   and an i get brainlsiest