All of the following are true about Titchener's famous Laboratory Manuals except .a. they were designed for use in drill courses b. they were the first manuals of experimental psychology, but they were eventually replaced by Sanford's manuals c. they included both qualitative and quantitative experiments d. the instructor's manuals were actually longer than the student manuals

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

the answer is c.

by: nicholas dooley

it should be d) transitional fossils.

they show the gradualism of evolution throughout a period of time