Question

These are singular, relatively long, whip-like organelles that many unicellular organisms use for motion.

Answer 1

This is called the Flagella

Answer 2

Answer: Flagellum

Step-by-step explanation:

Flagellum are singular organelles located at the caudal end of cells, mostly bacteria that are used to propel the organism in a specific direction. These are relatively long to the size of the organism, usually it's around the same size as the cell's body.