MICROANATOMY

Detailed explanation-1: -Answer and Explanation: Cilia, which are used for motion, have a 9+2 arrangement of microtubules.

Detailed explanation-2: -The 9 + 2 arrangement refers to how the microtubules are organised in structures such as the flagella and cilia. It has 9 pairs of microtubules situated on the outside that are bound together and 2 pairs of microtubules in the middle that are not bound together.

Detailed explanation-3: -Cilia and flagella have a core composed of microtubules that are connected to the plasma membrane and arranged in what is known as a 9 + 2 pattern. The pattern is so named because it consists of a ring of nine microtubule paired sets (doublets) that encircle two singular microtubules.