The microtubule-organizing center found in animal cells is an identifiable structure present during all phases of the cell cycle. specifically, it is known as the

a.) microtubulere
b.) centrosome
c.) centromere
d.) kinetochore

b.) centrosome

Explanation:

Centrosome is a structure with the function of  main microtubule organizing center (MTOC) of the animal cell. This structure has a key role in mitosis where it acts as a regulator of cell-cycle progression. Centrosome is composed of two centrioles which  serve to organize microtubules durind the cell division.

materials water oxygen those are the things i can think of in this moment.