The mitral valve is best heard . The mitral valve is best heard . in the right sternal margin of the fifth intercostal space in the second intercostal space at the left sternal margin in the left fifth intercostal space, in line with the middle of the clavicle in the second intercostal space at the right sternal margin None of the listed choices is correct.

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