Lymphocytes select one:

a. possess mhc antigens for recognizing self.
b. have membrane receptors that recognize foreign antigens.
c. gain tolerance to self by destruction of lymphocytes that could react against self.
d. develop into clones of b and t cells with extreme variations of specificity.
e. all of the choices are correct.

The correct option is E.

Explanation:

Lymphocytes are known as white blood cells, and also main type of immune cells. They are synthesized in the bone marrow, and present in the blood, and lymph tissues.

1) The immune cells work together to protect the body against foreign molecules such as virus, and bacteria.

2) They contain MHC antigens for recognizing self.

3) They contain membrane receptors that recognize foreign antigens.

4) They are helping to develop into clones of B and T cells with extreme variations of specificity.

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 correct answer is b