Which of the following diseases is caused by a spirochete?
tularemia
relapsing fever
rheumatic fever
rocky mountain spotted fever

Relapsing fever.

Explanation:

Relapsing fever is a type of recurring febrile disease that are mainly transmitted by ticks or lice. The main symptoms are myalgia, vomiting and headache.

The main causative agent of relapsing fever is spirochete Borrelia. Spirochetes are the flexible and twisting gram negative bacteria. These bacteria have endocellular flagella and known to cause a large number of diseases in humans.

Thus, the correct answer is option (2).

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 definitely a